56721340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{811}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 128913120

約数和(自身を除く): 72191780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 269, 538, 811, 1076, 1345, 1622, 2690, 3244, 3497, 4055, 5380, 6994, 8110, 10543, 13988, 16220, 17485, 21086, 34970, 42172, 52715, 69940, 105430, 210860, 218159, 436318, 872636, 1090795, 2181590, 2836067, 4363180, 5672134, 11344268, 14180335, 28360670, 56721340]

約数ペア:

[(1, 56721340), (2, 28360670), (4, 14180335), (5, 11344268), (10, 5672134), (13, 4363180), (20, 2836067), (26, 2181590), (52, 1090795), (65, 872636), (130, 436318), (260, 218159), (269, 210860), (538, 105430), (811, 69940), (1076, 52715), (1345, 42172), (1622, 34970), (2690, 21086), (3244, 17485), (3497, 16220), (4055, 13988), (5380, 10543), (6994, 8110)]