154555700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1949}}^1$

素因数の和:2037

約数の個数: 72

約数和(自身を含む): 367294200

約数和(自身を除く): 212738500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 130, 244, 260, 305, 325, 610, 650, 793, 1220, 1300, 1525, 1586, 1949, 3050, 3172, 3898, 3965, 6100, 7796, 7930, 9745, 15860, 19490, 19825, 25337, 38980, 39650, 48725, 50674, 79300, 97450, 101348, 118889, 126685, 194900, 237778, 253370, 475556, 506740, 594445, 633425, 1188890, 1266850, 1545557, 2377780, 2533700, 2972225, 3091114, 5944450, 6182228, 7727785, 11888900, 15455570, 30911140, 38638925, 77277850, 154555700]

約数ペア:

[(1, 154555700), (2, 77277850), (4, 38638925), (5, 30911140), (10, 15455570), (13, 11888900), (20, 7727785), (25, 6182228), (26, 5944450), (50, 3091114), (52, 2972225), (61, 2533700), (65, 2377780), (100, 1545557), (122, 1266850), (130, 1188890), (244, 633425), (260, 594445), (305, 506740), (325, 475556), (610, 253370), (650, 237778), (793, 194900), (1220, 126685), (1300, 118889), (1525, 101348), (1586, 97450), (1949, 79300), (3050, 50674), (3172, 48725), (3898, 39650), (3965, 38980), (6100, 25337), (7796, 19825), (7930, 19490), (9745, 15860)]