20160785620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6991}}^1\times {\mathrm{7589}}^1$

素因数の和:14608

約数の個数: 48

約数和(自身を含む): 44578195200

約数和(自身を除く): 24417409580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 6991, 7589, 13982, 15178, 27964, 30356, 34955, 37945, 69910, 75890, 132829, 139820, 144191, 151780, 265658, 288382, 531316, 576764, 664145, 720955, 1328290, 1441910, 2656580, 2883820, 53054699, 106109398, 212218796, 265273495, 530546990, 1008039281, 1061093980, 2016078562, 4032157124, 5040196405, 10080392810, 20160785620]

約数ペア:

[(1, 20160785620), (2, 10080392810), (4, 5040196405), (5, 4032157124), (10, 2016078562), (19, 1061093980), (20, 1008039281), (38, 530546990), (76, 265273495), (95, 212218796), (190, 106109398), (380, 53054699), (6991, 2883820), (7589, 2656580), (13982, 1441910), (15178, 1328290), (27964, 720955), (30356, 664145), (34955, 576764), (37945, 531316), (69910, 288382), (75890, 265658), (132829, 151780), (139820, 144191)]