61381580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{769}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 139450080

約数和(自身を除く): 78068500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307, 614, 769, 1228, 1535, 1538, 3070, 3076, 3845, 3991, 6140, 7690, 7982, 9997, 15380, 15964, 19955, 19994, 39910, 39988, 49985, 79820, 99970, 199940, 236083, 472166, 944332, 1180415, 2360830, 3069079, 4721660, 6138158, 12276316, 15345395, 30690790, 61381580]

約数ペア:

[(1, 61381580), (2, 30690790), (4, 15345395), (5, 12276316), (10, 6138158), (13, 4721660), (20, 3069079), (26, 2360830), (52, 1180415), (65, 944332), (130, 472166), (260, 236083), (307, 199940), (614, 99970), (769, 79820), (1228, 49985), (1535, 39988), (1538, 39910), (3070, 19994), (3076, 19955), (3845, 15964), (3991, 15380), (6140, 9997), (7690, 7982)]