20739968285

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{12409}}^1$

素因数の和:12749

約数の個数: 32

約数和(自身を含む): 26419599360

約数和(自身を除く): 5679631075

約数列:

[1, 5, 31, 41, 155, 205, 263, 1271, 1315, 6355, 8153, 10783, 12409, 40765, 53915, 62045, 334273, 384679, 508769, 1671365, 1923395, 2543845, 3263567, 15771839, 16317835, 78859195, 101170577, 133806247, 505852885, 669031235, 4147993657, 20739968285]

約数ペア:

[(1, 20739968285), (5, 4147993657), (31, 669031235), (41, 505852885), (155, 133806247), (205, 101170577), (263, 78859195), (1271, 16317835), (1315, 15771839), (6355, 3263567), (8153, 2543845), (10783, 1923395), (12409, 1671365), (40765, 508769), (53915, 384679), (62045, 334273)]