28864720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 70566912

約数和(自身を除く): 41702192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 103, 113, 124, 155, 206, 226, 248, 310, 412, 452, 496, 515, 565, 620, 824, 904, 1030, 1130, 1240, 1648, 1808, 2060, 2260, 2480, 3193, 3503, 4120, 4520, 6386, 7006, 8240, 9040, 11639, 12772, 14012, 15965, 17515, 23278, 25544, 28024, 31930, 35030, 46556, 51088, 56048, 58195, 63860, 70060, 93112, 116390, 127720, 140120, 186224, 232780, 255440, 280240, 360809, 465560, 721618, 931120, 1443236, 1804045, 2886472, 3608090, 5772944, 7216180, 14432360, 28864720]

約数ペア:

[(1, 28864720), (2, 14432360), (4, 7216180), (5, 5772944), (8, 3608090), (10, 2886472), (16, 1804045), (20, 1443236), (31, 931120), (40, 721618), (62, 465560), (80, 360809), (103, 280240), (113, 255440), (124, 232780), (155, 186224), (206, 140120), (226, 127720), (248, 116390), (310, 93112), (412, 70060), (452, 63860), (496, 58195), (515, 56048), (565, 51088), (620, 46556), (824, 35030), (904, 31930), (1030, 28024), (1130, 25544), (1240, 23278), (1648, 17515), (1808, 15965), (2060, 14012), (2260, 12772), (2480, 11639), (3193, 9040), (3503, 8240), (4120, 7006), (4520, 6386)]