23998975

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 40966128

約数和(自身を除く): 16967153

約数列:

[1, 5, 7, 11, 13, 25, 35, 49, 55, 65, 77, 91, 137, 143, 175, 245, 275, 325, 385, 455, 539, 637, 685, 715, 959, 1001, 1225, 1507, 1781, 1925, 2275, 2695, 3185, 3425, 3575, 4795, 5005, 6713, 7007, 7535, 8905, 10549, 12467, 13475, 15925, 19591, 23975, 25025, 33565, 35035, 37675, 44525, 52745, 62335, 73843, 87269, 97955, 137137, 167825, 175175, 263725, 311675, 369215, 436345, 489775, 685685, 959959, 1846075, 2181725, 3428425, 4799795, 23998975]

約数ペア:

[(1, 23998975), (5, 4799795), (7, 3428425), (11, 2181725), (13, 1846075), (25, 959959), (35, 685685), (49, 489775), (55, 436345), (65, 369215), (77, 311675), (91, 263725), (137, 175175), (143, 167825), (175, 137137), (245, 97955), (275, 87269), (325, 73843), (385, 62335), (455, 52745), (539, 44525), (637, 37675), (685, 35035), (715, 33565), (959, 25025), (1001, 23975), (1225, 19591), (1507, 15925), (1781, 13475), (1925, 12467), (2275, 10549), (2695, 8905), (3185, 7535), (3425, 7007), (3575, 6713), (4795, 5005)]