28407990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3167}}^1$

素因数の和:3213

約数の個数: 64

約数和(自身を含む): 76640256

約数和(自身を除く): 48232266

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2990, 3167, 4485, 6334, 8970, 9501, 15835, 19002, 31670, 41171, 47505, 72841, 82342, 95010, 123513, 145682, 205855, 218523, 247026, 364205, 411710, 437046, 617565, 728410, 946933, 1092615, 1235130, 1893866, 2185230, 2840799, 4734665, 5681598, 9469330, 14203995, 28407990]

約数ペア:

[(1, 28407990), (2, 14203995), (3, 9469330), (5, 5681598), (6, 4734665), (10, 2840799), (13, 2185230), (15, 1893866), (23, 1235130), (26, 1092615), (30, 946933), (39, 728410), (46, 617565), (65, 437046), (69, 411710), (78, 364205), (115, 247026), (130, 218523), (138, 205855), (195, 145682), (230, 123513), (299, 95010), (345, 82342), (390, 72841), (598, 47505), (690, 41171), (897, 31670), (1495, 19002), (1794, 15835), (2990, 9501), (3167, 8970), (4485, 6334)]