31157720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3727}}^1$

素因数の和:3768

約数の個数: 64

約数和(自身を含む): 80524800

約数和(自身を除く): 49367080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 3727, 4180, 7454, 8360, 14908, 18635, 29816, 37270, 40997, 70813, 74540, 81994, 141626, 149080, 163988, 204985, 283252, 327976, 354065, 409970, 566504, 708130, 778943, 819940, 1416260, 1557886, 1639880, 2832520, 3115772, 3894715, 6231544, 7789430, 15578860, 31157720]

約数ペア:

[(1, 31157720), (2, 15578860), (4, 7789430), (5, 6231544), (8, 3894715), (10, 3115772), (11, 2832520), (19, 1639880), (20, 1557886), (22, 1416260), (38, 819940), (40, 778943), (44, 708130), (55, 566504), (76, 409970), (88, 354065), (95, 327976), (110, 283252), (152, 204985), (190, 163988), (209, 149080), (220, 141626), (380, 81994), (418, 74540), (440, 70813), (760, 40997), (836, 37270), (1045, 29816), (1672, 18635), (2090, 14908), (3727, 8360), (4180, 7454)]