77951900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{983}}^1$

素因数の和:1071

約数の個数: 72

約数和(自身を含む): 185342304

約数和(自身を除く): 107390404

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, 983, 1220, 1300, 1525, 1586, 1966, 3050, 3172, 3932, 3965, 4915, 6100, 7930, 9830, 12779, 15860, 19660, 19825, 24575, 25558, 39650, 49150, 51116, 59963, 63895, 79300, 98300, 119926, 127790, 239852, 255580, 299815, 319475, 599630, 638950, 779519, 1199260, 1277900, 1499075, 1559038, 2998150, 3118076, 3897595, 5996300, 7795190, 15590380, 19487975, 38975950, 77951900]

約数ペア:

[(1, 77951900), (2, 38975950), (4, 19487975), (5, 15590380), (10, 7795190), (13, 5996300), (20, 3897595), (25, 3118076), (26, 2998150), (50, 1559038), (52, 1499075), (61, 1277900), (65, 1199260), (100, 779519), (122, 638950), (130, 599630), (244, 319475), (260, 299815), (305, 255580), (325, 239852), (610, 127790), (650, 119926), (793, 98300), (983, 79300), (1220, 63895), (1300, 59963), (1525, 51116), (1586, 49150), (1966, 39650), (3050, 25558), (3172, 24575), (3932, 19825), (3965, 19660), (4915, 15860), (6100, 12779), (7930, 9830)]