681662020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 1583366400

約数和(自身を除く): 901704380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 109, 130, 134, 218, 260, 268, 335, 359, 436, 545, 670, 718, 871, 1090, 1340, 1417, 1436, 1742, 1795, 2180, 2834, 3484, 3590, 4355, 4667, 5668, 7085, 7180, 7303, 8710, 9334, 14170, 14606, 17420, 18668, 23335, 24053, 28340, 29212, 36515, 39131, 46670, 48106, 73030, 78262, 93340, 94939, 96212, 120265, 146060, 156524, 189878, 195655, 240530, 312689, 379756, 391310, 474695, 481060, 508703, 625378, 782620, 949390, 1017406, 1250756, 1563445, 1898780, 2034812, 2543515, 2621777, 3126890, 5087030, 5243554, 6253780, 10174060, 10487108, 13108885, 26217770, 34083101, 52435540, 68166202, 136332404, 170415505, 340831010, 681662020]

約数ペア:

[(1, 681662020), (2, 340831010), (4, 170415505), (5, 136332404), (10, 68166202), (13, 52435540), (20, 34083101), (26, 26217770), (52, 13108885), (65, 10487108), (67, 10174060), (109, 6253780), (130, 5243554), (134, 5087030), (218, 3126890), (260, 2621777), (268, 2543515), (335, 2034812), (359, 1898780), (436, 1563445), (545, 1250756), (670, 1017406), (718, 949390), (871, 782620), (1090, 625378), (1340, 508703), (1417, 481060), (1436, 474695), (1742, 391310), (1795, 379756), (2180, 312689), (2834, 240530), (3484, 195655), (3590, 189878), (4355, 156524), (4667, 146060), (5668, 120265), (7085, 96212), (7180, 94939), (7303, 93340), (8710, 78262), (9334, 73030), (14170, 48106), (14606, 46670), (17420, 39131), (18668, 36515), (23335, 29212), (24053, 28340)]