51457700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 138741120

約数和(自身を除く): 87283420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 53, 70, 73, 76, 95, 100, 106, 133, 140, 146, 175, 190, 212, 265, 266, 292, 350, 365, 371, 380, 475, 511, 530, 532, 665, 700, 730, 742, 950, 1007, 1022, 1060, 1325, 1330, 1387, 1460, 1484, 1825, 1855, 1900, 2014, 2044, 2555, 2650, 2660, 2774, 3325, 3650, 3710, 3869, 4028, 5035, 5110, 5300, 5548, 6650, 6935, 7049, 7300, 7420, 7738, 9275, 9709, 10070, 10220, 12775, 13300, 13870, 14098, 15476, 18550, 19345, 19418, 20140, 25175, 25550, 27083, 27740, 28196, 34675, 35245, 37100, 38690, 38836, 48545, 50350, 51100, 54166, 69350, 70490, 73511, 77380, 96725, 97090, 100700, 108332, 135415, 138700, 140980, 147022, 176225, 193450, 194180, 242725, 270830, 294044, 352450, 367555, 386900, 485450, 514577, 541660, 677075, 704900, 735110, 970900, 1029154, 1354150, 1470220, 1837775, 2058308, 2572885, 2708300, 3675550, 5145770, 7351100, 10291540, 12864425, 25728850, 51457700]

約数ペア:

[(1, 51457700), (2, 25728850), (4, 12864425), (5, 10291540), (7, 7351100), (10, 5145770), (14, 3675550), (19, 2708300), (20, 2572885), (25, 2058308), (28, 1837775), (35, 1470220), (38, 1354150), (50, 1029154), (53, 970900), (70, 735110), (73, 704900), (76, 677075), (95, 541660), (100, 514577), (106, 485450), (133, 386900), (140, 367555), (146, 352450), (175, 294044), (190, 270830), (212, 242725), (265, 194180), (266, 193450), (292, 176225), (350, 147022), (365, 140980), (371, 138700), (380, 135415), (475, 108332), (511, 100700), (530, 97090), (532, 96725), (665, 77380), (700, 73511), (730, 70490), (742, 69350), (950, 54166), (1007, 51100), (1022, 50350), (1060, 48545), (1325, 38836), (1330, 38690), (1387, 37100), (1460, 35245), (1484, 34675), (1825, 28196), (1855, 27740), (1900, 27083), (2014, 25550), (2044, 25175), (2555, 20140), (2650, 19418), (2660, 19345), (2774, 18550), (3325, 15476), (3650, 14098), (3710, 13870), (3869, 13300), (4028, 12775), (5035, 10220), (5110, 10070), (5300, 9709), (5548, 9275), (6650, 7738), (6935, 7420), (7049, 7300)]