251694817925

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{457}}^1\times {\mathrm{2459}}^1$

素因数の和:2991

約数の個数: 72

約数和(自身を含む): 343123633920

約数和(自身を除く): 91428815995

約数列:

[1, 5, 17, 25, 31, 85, 155, 289, 425, 457, 527, 775, 1445, 2285, 2459, 2635, 7225, 7769, 8959, 11425, 12295, 13175, 14167, 38845, 41803, 44795, 61475, 70835, 76229, 132073, 194225, 209015, 223975, 240839, 354175, 381145, 660365, 710651, 1045075, 1123763, 1204195, 1295893, 1905725, 3301825, 3553255, 4094263, 5618815, 6020975, 6479465, 17766275, 19103971, 20471315, 22030181, 28094075, 32397325, 34836653, 95519855, 102356575, 110150905, 174183265, 324767507, 477599275, 550754525, 592223101, 870916325, 1623837535, 2961115505, 8119187675, 10067792717, 14805577525, 50338963585, 251694817925]

約数ペア:

[(1, 251694817925), (5, 50338963585), (17, 14805577525), (25, 10067792717), (31, 8119187675), (85, 2961115505), (155, 1623837535), (289, 870916325), (425, 592223101), (457, 550754525), (527, 477599275), (775, 324767507), (1445, 174183265), (2285, 110150905), (2459, 102356575), (2635, 95519855), (7225, 34836653), (7769, 32397325), (8959, 28094075), (11425, 22030181), (12295, 20471315), (13175, 19103971), (14167, 17766275), (38845, 6479465), (41803, 6020975), (44795, 5618815), (61475, 4094263), (70835, 3553255), (76229, 3301825), (132073, 1905725), (194225, 1295893), (209015, 1204195), (223975, 1123763), (240839, 1045075), (354175, 710651), (381145, 660365)]