20937112690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1\times {\mathrm{6473}}^1$

素因数の和:6811

約数の個数: 64

約数和(自身を含む): 41112489600

約数和(自身を除く): 20175376910

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 179, 278, 358, 695, 895, 1390, 1790, 1807, 2327, 3614, 4654, 6473, 9035, 11635, 12946, 18070, 23270, 24881, 32365, 49762, 64730, 84149, 124405, 168298, 248810, 323453, 420745, 646906, 841490, 899747, 1158667, 1617265, 1799494, 2317334, 3234530, 4498735, 5793335, 8997470, 11586670, 11696711, 15062671, 23393422, 30125342, 58483555, 75313355, 116967110, 150626710, 161054713, 322109426, 805273565, 1610547130, 2093711269, 4187422538, 10468556345, 20937112690]

約数ペア:

[(1, 20937112690), (2, 10468556345), (5, 4187422538), (10, 2093711269), (13, 1610547130), (26, 805273565), (65, 322109426), (130, 161054713), (139, 150626710), (179, 116967110), (278, 75313355), (358, 58483555), (695, 30125342), (895, 23393422), (1390, 15062671), (1790, 11696711), (1807, 11586670), (2327, 8997470), (3614, 5793335), (4654, 4498735), (6473, 3234530), (9035, 2317334), (11635, 1799494), (12946, 1617265), (18070, 1158667), (23270, 899747), (24881, 841490), (32365, 646906), (49762, 420745), (64730, 323453), (84149, 248810), (124405, 168298)]