16694920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2038

約数の個数: 64

約数和(自身を含む): 43156800

約数和(自身を除く): 26461880

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, 1997, 2090, 3994, 4180, 7988, 8360, 9985, 15976, 19970, 21967, 37943, 39940, 43934, 75886, 79880, 87868, 109835, 151772, 175736, 189715, 219670, 303544, 379430, 417373, 439340, 758860, 834746, 878680, 1517720, 1669492, 2086865, 3338984, 4173730, 8347460, 16694920]

約数ペア:

[(1, 16694920), (2, 8347460), (4, 4173730), (5, 3338984), (8, 2086865), (10, 1669492), (11, 1517720), (19, 878680), (20, 834746), (22, 758860), (38, 439340), (40, 417373), (44, 379430), (55, 303544), (76, 219670), (88, 189715), (95, 175736), (110, 151772), (152, 109835), (190, 87868), (209, 79880), (220, 75886), (380, 43934), (418, 39940), (440, 37943), (760, 21967), (836, 19970), (1045, 15976), (1672, 9985), (1997, 8360), (2090, 7988), (3994, 4180)]