1900201420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{547}}^1$

素因数の和:1031

約数の個数: 96

約数和(自身を含む): 4454424576

約数和(自身を除く): 2554223156

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 431, 547, 620, 806, 862, 1094, 1612, 1724, 2015, 2155, 2188, 2735, 4030, 4310, 5470, 5603, 7111, 8060, 8620, 10940, 11206, 13361, 14222, 16957, 22412, 26722, 28015, 28444, 33914, 35555, 53444, 56030, 66805, 67828, 71110, 84785, 112060, 133610, 142220, 169570, 173693, 220441, 235757, 267220, 339140, 347386, 440882, 471514, 694772, 868465, 881764, 943028, 1102205, 1178785, 1736930, 2204410, 2357570, 3064841, 3473860, 4408820, 4715140, 6129682, 7308467, 12259364, 14616934, 15324205, 29233868, 30648410, 36542335, 61296820, 73084670, 95010071, 146169340, 190020142, 380040284, 475050355, 950100710, 1900201420]

約数ペア:

[(1, 1900201420), (2, 950100710), (4, 475050355), (5, 380040284), (10, 190020142), (13, 146169340), (20, 95010071), (26, 73084670), (31, 61296820), (52, 36542335), (62, 30648410), (65, 29233868), (124, 15324205), (130, 14616934), (155, 12259364), (260, 7308467), (310, 6129682), (403, 4715140), (431, 4408820), (547, 3473860), (620, 3064841), (806, 2357570), (862, 2204410), (1094, 1736930), (1612, 1178785), (1724, 1102205), (2015, 943028), (2155, 881764), (2188, 868465), (2735, 694772), (4030, 471514), (4310, 440882), (5470, 347386), (5603, 339140), (7111, 267220), (8060, 235757), (8620, 220441), (10940, 173693), (11206, 169570), (13361, 142220), (14222, 133610), (16957, 112060), (22412, 84785), (26722, 71110), (28015, 67828), (28444, 66805), (33914, 56030), (35555, 53444)]