80278900

素因数分解:

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

素因数の和:1733

約数の個数: 72

約数和(自身を含む): 192791480

約数和(自身を除く): 112512580

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 74, 100, 130, 148, 185, 260, 325, 370, 481, 650, 740, 925, 962, 1300, 1669, 1850, 1924, 2405, 3338, 3700, 4810, 6676, 8345, 9620, 12025, 16690, 21697, 24050, 33380, 41725, 43394, 48100, 61753, 83450, 86788, 108485, 123506, 166900, 216970, 247012, 308765, 433940, 542425, 617530, 802789, 1084850, 1235060, 1543825, 1605578, 2169700, 3087650, 3211156, 4013945, 6175300, 8027890, 16055780, 20069725, 40139450, 80278900]

約数ペア:

[(1, 80278900), (2, 40139450), (4, 20069725), (5, 16055780), (10, 8027890), (13, 6175300), (20, 4013945), (25, 3211156), (26, 3087650), (37, 2169700), (50, 1605578), (52, 1543825), (65, 1235060), (74, 1084850), (100, 802789), (130, 617530), (148, 542425), (185, 433940), (260, 308765), (325, 247012), (370, 216970), (481, 166900), (650, 123506), (740, 108485), (925, 86788), (962, 83450), (1300, 61753), (1669, 48100), (1850, 43394), (1924, 41725), (2405, 33380), (3338, 24050), (3700, 21697), (4810, 16690), (6676, 12025), (8345, 9620)]