252112720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{941}}^1$

素因数の和:1168

約数の個数: 80

約数和(自身を含む): 624455568

約数和(自身を除く): 372342848

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 197, 272, 340, 394, 680, 788, 941, 985, 1360, 1576, 1882, 1970, 3152, 3349, 3764, 3940, 4705, 6698, 7528, 7880, 9410, 13396, 15056, 15760, 15997, 16745, 18820, 26792, 31994, 33490, 37640, 53584, 63988, 66980, 75280, 79985, 127976, 133960, 159970, 185377, 255952, 267920, 319940, 370754, 639880, 741508, 926885, 1279760, 1483016, 1853770, 2966032, 3151409, 3707540, 6302818, 7415080, 12605636, 14830160, 15757045, 25211272, 31514090, 50422544, 63028180, 126056360, 252112720]

約数ペア:

[(1, 252112720), (2, 126056360), (4, 63028180), (5, 50422544), (8, 31514090), (10, 25211272), (16, 15757045), (17, 14830160), (20, 12605636), (34, 7415080), (40, 6302818), (68, 3707540), (80, 3151409), (85, 2966032), (136, 1853770), (170, 1483016), (197, 1279760), (272, 926885), (340, 741508), (394, 639880), (680, 370754), (788, 319940), (941, 267920), (985, 255952), (1360, 185377), (1576, 159970), (1882, 133960), (1970, 127976), (3152, 79985), (3349, 75280), (3764, 66980), (3940, 63988), (4705, 53584), (6698, 37640), (7528, 33490), (7880, 31994), (9410, 26792), (13396, 18820), (15056, 16745), (15760, 15997)]