208725140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1669}}^1$

素因数の和:1741

約数の個数: 72

約数和(自身を含む): 487753560

約数和(自身を除く): 279028420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 260, 338, 370, 481, 676, 740, 845, 962, 1669, 1690, 1924, 2405, 3338, 3380, 4810, 6253, 6676, 8345, 9620, 12506, 16690, 21697, 25012, 31265, 33380, 43394, 61753, 62530, 86788, 108485, 123506, 125060, 216970, 247012, 282061, 308765, 433940, 564122, 617530, 802789, 1128244, 1235060, 1410305, 1605578, 2820610, 3211156, 4013945, 5641220, 8027890, 10436257, 16055780, 20872514, 41745028, 52181285, 104362570, 208725140]

約数ペア:

[(1, 208725140), (2, 104362570), (4, 52181285), (5, 41745028), (10, 20872514), (13, 16055780), (20, 10436257), (26, 8027890), (37, 5641220), (52, 4013945), (65, 3211156), (74, 2820610), (130, 1605578), (148, 1410305), (169, 1235060), (185, 1128244), (260, 802789), (338, 617530), (370, 564122), (481, 433940), (676, 308765), (740, 282061), (845, 247012), (962, 216970), (1669, 125060), (1690, 123506), (1924, 108485), (2405, 86788), (3338, 62530), (3380, 61753), (4810, 43394), (6253, 33380), (6676, 31265), (8345, 25012), (9620, 21697), (12506, 16690)]