641788080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:556

約数の個数: 240

約数和(自身を含む): 2229262080

約数和(自身を除く): 1587474000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 285, 289, 304, 323, 340, 380, 408, 456, 487, 510, 570, 578, 646, 680, 760, 816, 867, 912, 969, 974, 1020, 1140, 1156, 1292, 1360, 1445, 1461, 1520, 1615, 1734, 1938, 1948, 2040, 2280, 2312, 2435, 2584, 2890, 2922, 3230, 3468, 3876, 3896, 4080, 4335, 4560, 4624, 4845, 4870, 5168, 5491, 5780, 5844, 6460, 6936, 7305, 7752, 7792, 8279, 8670, 9253, 9690, 9740, 10982, 11560, 11688, 12920, 13872, 14610, 15504, 16473, 16558, 17340, 18506, 19380, 19480, 21964, 23120, 23376, 24837, 25840, 27455, 27759, 29220, 32946, 33116, 34680, 37012, 38760, 38960, 41395, 43928, 46265, 49674, 54910, 55518, 58440, 65892, 66232, 69360, 74024, 77520, 82365, 82790, 87856, 92530, 99348, 109820, 111036, 116880, 124185, 131784, 132464, 138795, 140743, 148048, 157301, 164730, 165580, 185060, 198696, 219640, 222072, 248370, 263568, 277590, 281486, 314602, 329460, 331160, 370120, 397392, 422229, 439280, 444144, 471903, 496740, 555180, 562972, 629204, 658920, 662320, 703715, 740240, 786505, 844458, 943806, 993480, 1110360, 1125944, 1258408, 1317840, 1407430, 1573010, 1688916, 1887612, 1986960, 2111145, 2220720, 2251888, 2359515, 2516816, 2674117, 2814860, 3146020, 3377832, 3775224, 4222290, 4719030, 5348234, 5629720, 6292040, 6755664, 7550448, 8022351, 8444580, 9438060, 10696468, 11259440, 12584080, 13370585, 16044702, 16889160, 18876120, 21392936, 26741170, 32089404, 33778320, 37752240, 40111755, 42785872, 53482340, 64178808, 80223510, 106964680, 128357616, 160447020, 213929360, 320894040, 641788080]

約数ペア:

[(1, 641788080), (2, 320894040), (3, 213929360), (4, 160447020), (5, 128357616), (6, 106964680), (8, 80223510), (10, 64178808), (12, 53482340), (15, 42785872), (16, 40111755), (17, 37752240), (19, 33778320), (20, 32089404), (24, 26741170), (30, 21392936), (34, 18876120), (38, 16889160), (40, 16044702), (48, 13370585), (51, 12584080), (57, 11259440), (60, 10696468), (68, 9438060), (76, 8444580), (80, 8022351), (85, 7550448), (95, 6755664), (102, 6292040), (114, 5629720), (120, 5348234), (136, 4719030), (152, 4222290), (170, 3775224), (190, 3377832), (204, 3146020), (228, 2814860), (240, 2674117), (255, 2516816), (272, 2359515), (285, 2251888), (289, 2220720), (304, 2111145), (323, 1986960), (340, 1887612), (380, 1688916), (408, 1573010), (456, 1407430), (487, 1317840), (510, 1258408), (570, 1125944), (578, 1110360), (646, 993480), (680, 943806), (760, 844458), (816, 786505), (867, 740240), (912, 703715), (969, 662320), (974, 658920), (1020, 629204), (1140, 562972), (1156, 555180), (1292, 496740), (1360, 471903), (1445, 444144), (1461, 439280), (1520, 422229), (1615, 397392), (1734, 370120), (1938, 331160), (1948, 329460), (2040, 314602), (2280, 281486), (2312, 277590), (2435, 263568), (2584, 248370), (2890, 222072), (2922, 219640), (3230, 198696), (3468, 185060), (3876, 165580), (3896, 164730), (4080, 157301), (4335, 148048), (4560, 140743), (4624, 138795), (4845, 132464), (4870, 131784), (5168, 124185), (5491, 116880), (5780, 111036), (5844, 109820), (6460, 99348), (6936, 92530), (7305, 87856), (7752, 82790), (7792, 82365), (8279, 77520), (8670, 74024), (9253, 69360), (9690, 66232), (9740, 65892), (10982, 58440), (11560, 55518), (11688, 54910), (12920, 49674), (13872, 46265), (14610, 43928), (15504, 41395), (16473, 38960), (16558, 38760), (17340, 37012), (18506, 34680), (19380, 33116), (19480, 32946), (21964, 29220), (23120, 27759), (23376, 27455), (24837, 25840)]