20908380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:283

約数の個数: 96

約数和(自身を含む): 62092800

約数和(自身を除く): 41184420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 109, 115, 138, 139, 218, 230, 276, 278, 327, 345, 417, 436, 460, 545, 556, 654, 690, 695, 834, 1090, 1308, 1380, 1390, 1635, 1668, 2085, 2180, 2507, 2780, 3197, 3270, 4170, 5014, 6394, 6540, 7521, 8340, 9591, 10028, 12535, 12788, 15042, 15151, 15985, 19182, 25070, 30084, 30302, 31970, 37605, 38364, 45453, 47955, 50140, 60604, 63940, 75210, 75755, 90906, 95910, 150420, 151510, 181812, 191820, 227265, 303020, 348473, 454530, 696946, 909060, 1045419, 1393892, 1742365, 2090838, 3484730, 4181676, 5227095, 6969460, 10454190, 20908380]

約数ペア:

[(1, 20908380), (2, 10454190), (3, 6969460), (4, 5227095), (5, 4181676), (6, 3484730), (10, 2090838), (12, 1742365), (15, 1393892), (20, 1045419), (23, 909060), (30, 696946), (46, 454530), (60, 348473), (69, 303020), (92, 227265), (109, 191820), (115, 181812), (138, 151510), (139, 150420), (218, 95910), (230, 90906), (276, 75755), (278, 75210), (327, 63940), (345, 60604), (417, 50140), (436, 47955), (460, 45453), (545, 38364), (556, 37605), (654, 31970), (690, 30302), (695, 30084), (834, 25070), (1090, 19182), (1308, 15985), (1380, 15151), (1390, 15042), (1635, 12788), (1668, 12535), (2085, 10028), (2180, 9591), (2507, 8340), (2780, 7521), (3197, 6540), (3270, 6394), (4170, 5014)]