315661840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9791}}^1$

素因数の和:9848

約数の個数: 80

約数和(自身を含む): 815947776

約数和(自身を除く): 500285936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 9791, 16120, 19582, 32240, 39164, 48955, 78328, 97910, 127283, 156656, 195820, 254566, 303521, 391640, 509132, 607042, 636415, 783280, 1018264, 1214084, 1272830, 1517605, 2036528, 2428168, 2545660, 3035210, 3945773, 4856336, 5091320, 6070420, 7891546, 10182640, 12140840, 15783092, 19728865, 24281680, 31566184, 39457730, 63132368, 78915460, 157830920, 315661840]

約数ペア:

[(1, 315661840), (2, 157830920), (4, 78915460), (5, 63132368), (8, 39457730), (10, 31566184), (13, 24281680), (16, 19728865), (20, 15783092), (26, 12140840), (31, 10182640), (40, 7891546), (52, 6070420), (62, 5091320), (65, 4856336), (80, 3945773), (104, 3035210), (124, 2545660), (130, 2428168), (155, 2036528), (208, 1517605), (248, 1272830), (260, 1214084), (310, 1018264), (403, 783280), (496, 636415), (520, 607042), (620, 509132), (806, 391640), (1040, 303521), (1240, 254566), (1612, 195820), (2015, 156656), (2480, 127283), (3224, 97910), (4030, 78328), (6448, 48955), (8060, 39164), (9791, 32240), (16120, 19582)]