720641220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{54347}}^1$

素因数の和:54389

約数の個数: 96

約数和(自身を含む): 2300876928

約数和(自身を除く): 1580235708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 54347, 108694, 163041, 217388, 271735, 326082, 543470, 652164, 706511, 815205, 923899, 1086940, 1413022, 1630410, 1847798, 2119533, 2771697, 2826044, 3260820, 3532555, 3695596, 4239066, 4619495, 5543394, 7065110, 8478132, 9238990, 10597665, 11086788, 12010687, 13858485, 14130220, 18477980, 21195330, 24021374, 27716970, 36032061, 42390660, 48042748, 55433940, 60053435, 72064122, 120106870, 144128244, 180160305, 240213740, 360320610, 720641220]

約数ペア:

[(1, 720641220), (2, 360320610), (3, 240213740), (4, 180160305), (5, 144128244), (6, 120106870), (10, 72064122), (12, 60053435), (13, 55433940), (15, 48042748), (17, 42390660), (20, 36032061), (26, 27716970), (30, 24021374), (34, 21195330), (39, 18477980), (51, 14130220), (52, 13858485), (60, 12010687), (65, 11086788), (68, 10597665), (78, 9238990), (85, 8478132), (102, 7065110), (130, 5543394), (156, 4619495), (170, 4239066), (195, 3695596), (204, 3532555), (221, 3260820), (255, 2826044), (260, 2771697), (340, 2119533), (390, 1847798), (442, 1630410), (510, 1413022), (663, 1086940), (780, 923899), (884, 815205), (1020, 706511), (1105, 652164), (1326, 543470), (2210, 326082), (2652, 271735), (3315, 217388), (4420, 163041), (6630, 108694), (13260, 54347)]