155003875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 228953088

約数和(自身を除く): 73949213

約数列:

[1, 5, 13, 17, 25, 31, 65, 85, 125, 155, 181, 221, 325, 403, 425, 527, 775, 905, 1105, 1625, 2015, 2125, 2353, 2635, 3077, 3875, 4525, 5525, 5611, 6851, 10075, 11765, 13175, 15385, 22625, 27625, 28055, 34255, 40001, 50375, 58825, 65875, 72943, 76925, 95387, 140275, 171275, 200005, 294125, 364715, 384625, 476935, 701375, 856375, 1000025, 1240031, 1823575, 2384675, 5000125, 6200155, 9117875, 11923375, 31000775, 155003875]

約数ペア:

[(1, 155003875), (5, 31000775), (13, 11923375), (17, 9117875), (25, 6200155), (31, 5000125), (65, 2384675), (85, 1823575), (125, 1240031), (155, 1000025), (181, 856375), (221, 701375), (325, 476935), (403, 384625), (425, 364715), (527, 294125), (775, 200005), (905, 171275), (1105, 140275), (1625, 95387), (2015, 76925), (2125, 72943), (2353, 65875), (2635, 58825), (3077, 50375), (3875, 40001), (4525, 34255), (5525, 28055), (5611, 27625), (6851, 22625), (10075, 15385), (11765, 13175)]