20571001980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{145091}}^1$

素因数の和:145259

約数の個数: 96

約数和(自身を含む): 61426149120

約数和(自身を除く): 40855147140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 139, 170, 204, 255, 278, 340, 417, 510, 556, 695, 834, 1020, 1390, 1668, 2085, 2363, 2780, 4170, 4726, 7089, 8340, 9452, 11815, 14178, 23630, 28356, 35445, 47260, 70890, 141780, 145091, 290182, 435273, 580364, 725455, 870546, 1450910, 1741092, 2176365, 2466547, 2901820, 4352730, 4933094, 7399641, 8705460, 9866188, 12332735, 14799282, 20167649, 24665470, 29598564, 36998205, 40335298, 49330940, 60502947, 73996410, 80670596, 100838245, 121005894, 147992820, 201676490, 242011788, 302514735, 342850033, 403352980, 605029470, 685700066, 1028550099, 1210058940, 1371400132, 1714250165, 2057100198, 3428500330, 4114200396, 5142750495, 6857000660, 10285500990, 20571001980]

約数ペア:

[(1, 20571001980), (2, 10285500990), (3, 6857000660), (4, 5142750495), (5, 4114200396), (6, 3428500330), (10, 2057100198), (12, 1714250165), (15, 1371400132), (17, 1210058940), (20, 1028550099), (30, 685700066), (34, 605029470), (51, 403352980), (60, 342850033), (68, 302514735), (85, 242011788), (102, 201676490), (139, 147992820), (170, 121005894), (204, 100838245), (255, 80670596), (278, 73996410), (340, 60502947), (417, 49330940), (510, 40335298), (556, 36998205), (695, 29598564), (834, 24665470), (1020, 20167649), (1390, 14799282), (1668, 12332735), (2085, 9866188), (2363, 8705460), (2780, 7399641), (4170, 4933094), (4726, 4352730), (7089, 2901820), (8340, 2466547), (9452, 2176365), (11815, 1741092), (14178, 1450910), (23630, 870546), (28356, 725455), (35445, 580364), (47260, 435273), (70890, 290182), (141780, 145091)]