260966680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16189}}^1$

素因数の和:16244

約数の個数: 64

約数和(自身を含む): 652780800

約数和(自身を除く): 391814120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 16189, 32378, 64756, 80945, 129512, 161890, 210457, 323780, 420914, 501859, 647560, 841828, 1003718, 1052285, 1683656, 2007436, 2104570, 2509295, 4014872, 4209140, 5018590, 6524167, 8418280, 10037180, 13048334, 20074360, 26096668, 32620835, 52193336, 65241670, 130483340, 260966680]

約数ペア:

[(1, 260966680), (2, 130483340), (4, 65241670), (5, 52193336), (8, 32620835), (10, 26096668), (13, 20074360), (20, 13048334), (26, 10037180), (31, 8418280), (40, 6524167), (52, 5018590), (62, 4209140), (65, 4014872), (104, 2509295), (124, 2104570), (130, 2007436), (155, 1683656), (248, 1052285), (260, 1003718), (310, 841828), (403, 647560), (520, 501859), (620, 420914), (806, 323780), (1240, 210457), (1612, 161890), (2015, 129512), (3224, 80945), (4030, 64756), (8060, 32378), (16120, 16189)]