53931280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3989}}^1$

素因数の和:4028

約数の個数: 60

約数和(自身を含む): 135811620

約数和(自身を除く): 81880340

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 3989, 6760, 7978, 13520, 15956, 19945, 31912, 39890, 51857, 63824, 79780, 103714, 159560, 207428, 259285, 319120, 414856, 518570, 674141, 829712, 1037140, 1348282, 2074280, 2696564, 3370705, 4148560, 5393128, 6741410, 10786256, 13482820, 26965640, 53931280]

約数ペア:

[(1, 53931280), (2, 26965640), (4, 13482820), (5, 10786256), (8, 6741410), (10, 5393128), (13, 4148560), (16, 3370705), (20, 2696564), (26, 2074280), (40, 1348282), (52, 1037140), (65, 829712), (80, 674141), (104, 518570), (130, 414856), (169, 319120), (208, 259285), (260, 207428), (338, 159560), (520, 103714), (676, 79780), (845, 63824), (1040, 51857), (1352, 39890), (1690, 31912), (2704, 19945), (3380, 15956), (3989, 13520), (6760, 7978)]