890496880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{122321}}^1$

素因数の和:122354

約数の個数: 80

約数和(自身を含む): 2548211904

約数和(自身を除く): 1657715024

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 122321, 244642, 489284, 611605, 856247, 978568, 1223210, 1590173, 1712494, 1957136, 2446420, 3180346, 3424988, 4281235, 4892840, 6360692, 6849976, 7950865, 8562470, 9785680, 11131211, 12721384, 13699952, 15901730, 17124940, 22262422, 25442768, 31803460, 34249880, 44524844, 55656055, 63606920, 68499760, 89049688, 111312110, 127213840, 178099376, 222624220, 445248440, 890496880]

約数ペア:

[(1, 890496880), (2, 445248440), (4, 222624220), (5, 178099376), (7, 127213840), (8, 111312110), (10, 89049688), (13, 68499760), (14, 63606920), (16, 55656055), (20, 44524844), (26, 34249880), (28, 31803460), (35, 25442768), (40, 22262422), (52, 17124940), (56, 15901730), (65, 13699952), (70, 12721384), (80, 11131211), (91, 9785680), (104, 8562470), (112, 7950865), (130, 6849976), (140, 6360692), (182, 4892840), (208, 4281235), (260, 3424988), (280, 3180346), (364, 2446420), (455, 1957136), (520, 1712494), (560, 1590173), (728, 1223210), (910, 978568), (1040, 856247), (1456, 611605), (1820, 489284), (3640, 244642), (7280, 122321)]