2657720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 6804000

約数和(自身を除く): 4146280

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 269, 380, 494, 520, 538, 760, 988, 1076, 1235, 1345, 1976, 2152, 2470, 2690, 3497, 4940, 5111, 5380, 6994, 9880, 10222, 10760, 13988, 17485, 20444, 25555, 27976, 34970, 40888, 51110, 66443, 69940, 102220, 132886, 139880, 204440, 265772, 332215, 531544, 664430, 1328860, 2657720]

約数ペア:

[(1, 2657720), (2, 1328860), (4, 664430), (5, 531544), (8, 332215), (10, 265772), (13, 204440), (19, 139880), (20, 132886), (26, 102220), (38, 69940), (40, 66443), (52, 51110), (65, 40888), (76, 34970), (95, 27976), (104, 25555), (130, 20444), (152, 17485), (190, 13988), (247, 10760), (260, 10222), (269, 9880), (380, 6994), (494, 5380), (520, 5111), (538, 4940), (760, 3497), (988, 2690), (1076, 2470), (1235, 2152), (1345, 1976)]