8636980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 20645856

約数和(自身を除く): 12008876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 83, 86, 110, 121, 166, 172, 215, 220, 242, 332, 415, 430, 473, 484, 605, 830, 860, 913, 946, 1210, 1660, 1826, 1892, 2365, 2420, 3569, 3652, 4565, 4730, 5203, 7138, 9130, 9460, 10043, 10406, 14276, 17845, 18260, 20086, 20812, 26015, 35690, 39259, 40172, 50215, 52030, 71380, 78518, 100430, 104060, 157036, 196295, 200860, 392590, 431849, 785180, 863698, 1727396, 2159245, 4318490, 8636980]

約数ペア:

[(1, 8636980), (2, 4318490), (4, 2159245), (5, 1727396), (10, 863698), (11, 785180), (20, 431849), (22, 392590), (43, 200860), (44, 196295), (55, 157036), (83, 104060), (86, 100430), (110, 78518), (121, 71380), (166, 52030), (172, 50215), (215, 40172), (220, 39259), (242, 35690), (332, 26015), (415, 20812), (430, 20086), (473, 18260), (484, 17845), (605, 14276), (830, 10406), (860, 10043), (913, 9460), (946, 9130), (1210, 7138), (1660, 5203), (1826, 4730), (1892, 4565), (2365, 3652), (2420, 3569)]