644723120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 1645608960

約数和(自身を除く): 1000885840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 89, 92, 115, 124, 127, 155, 178, 184, 230, 248, 254, 310, 356, 368, 445, 460, 496, 508, 620, 635, 712, 713, 890, 920, 1016, 1240, 1270, 1424, 1426, 1780, 1840, 2032, 2047, 2480, 2540, 2759, 2852, 2921, 3560, 3565, 3937, 4094, 5080, 5518, 5704, 5842, 7120, 7130, 7874, 8188, 10160, 10235, 11036, 11303, 11408, 11684, 13795, 14260, 14605, 15748, 16376, 19685, 20470, 22072, 22606, 23368, 27590, 28520, 29210, 31496, 32752, 39370, 40940, 44144, 45212, 46736, 55180, 56515, 57040, 58420, 62992, 63457, 78740, 81880, 90424, 90551, 110360, 113030, 116840, 126914, 157480, 163760, 180848, 181102, 220720, 226060, 233680, 253828, 259969, 314960, 317285, 350393, 362204, 452120, 452755, 507656, 519938, 634570, 700786, 724408, 904240, 905510, 1015312, 1039876, 1269140, 1299845, 1401572, 1448816, 1751965, 1811020, 2079752, 2538280, 2599690, 2803144, 3503930, 3622040, 4159504, 5076560, 5199380, 5606288, 7007860, 7244080, 8059039, 10398760, 14015720, 16118078, 20797520, 28031440, 32236156, 40295195, 64472312, 80590390, 128944624, 161180780, 322361560, 644723120]

約数ペア:

[(1, 644723120), (2, 322361560), (4, 161180780), (5, 128944624), (8, 80590390), (10, 64472312), (16, 40295195), (20, 32236156), (23, 28031440), (31, 20797520), (40, 16118078), (46, 14015720), (62, 10398760), (80, 8059039), (89, 7244080), (92, 7007860), (115, 5606288), (124, 5199380), (127, 5076560), (155, 4159504), (178, 3622040), (184, 3503930), (230, 2803144), (248, 2599690), (254, 2538280), (310, 2079752), (356, 1811020), (368, 1751965), (445, 1448816), (460, 1401572), (496, 1299845), (508, 1269140), (620, 1039876), (635, 1015312), (712, 905510), (713, 904240), (890, 724408), (920, 700786), (1016, 634570), (1240, 519938), (1270, 507656), (1424, 452755), (1426, 452120), (1780, 362204), (1840, 350393), (2032, 317285), (2047, 314960), (2480, 259969), (2540, 253828), (2759, 233680), (2852, 226060), (2921, 220720), (3560, 181102), (3565, 180848), (3937, 163760), (4094, 157480), (5080, 126914), (5518, 116840), (5704, 113030), (5842, 110360), (7120, 90551), (7130, 90424), (7874, 81880), (8188, 78740), (10160, 63457), (10235, 62992), (11036, 58420), (11303, 57040), (11408, 56515), (11684, 55180), (13795, 46736), (14260, 45212), (14605, 44144), (15748, 40940), (16376, 39370), (19685, 32752), (20470, 31496), (22072, 29210), (22606, 28520), (23368, 27590)]