1981445818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 3478780800

約数和(自身を除く): 1497334982

約数列:

[1, 2, 11, 19, 22, 38, 109, 157, 209, 218, 277, 314, 418, 554, 1199, 1727, 2071, 2398, 2983, 3047, 3454, 4142, 5263, 5966, 6094, 10526, 17113, 22781, 30193, 32813, 34226, 43489, 45562, 57893, 60386, 65626, 86978, 115786, 188243, 325147, 332123, 376486, 478379, 573667, 650294, 664246, 826291, 956758, 1147334, 1652582, 3576617, 4740301, 6310337, 7153234, 9089201, 9480602, 12620674, 18178402, 52143311, 90065719, 104286622, 180131438, 990722909, 1981445818]

約数ペア:

[(1, 1981445818), (2, 990722909), (11, 180131438), (19, 104286622), (22, 90065719), (38, 52143311), (109, 18178402), (157, 12620674), (209, 9480602), (218, 9089201), (277, 7153234), (314, 6310337), (418, 4740301), (554, 3576617), (1199, 1652582), (1727, 1147334), (2071, 956758), (2398, 826291), (2983, 664246), (3047, 650294), (3454, 573667), (4142, 478379), (5263, 376486), (5966, 332123), (6094, 325147), (10526, 188243), (17113, 115786), (22781, 86978), (30193, 65626), (32813, 60386), (34226, 57893), (43489, 45562)]