20178768

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:304

約数の個数: 80

約数和(自身を含む): 54853632

約数和(自身を除く): 34674864

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 71, 93, 124, 142, 186, 191, 213, 248, 284, 372, 382, 426, 496, 568, 573, 744, 764, 852, 1136, 1146, 1488, 1528, 1704, 2201, 2292, 3056, 3408, 4402, 4584, 5921, 6603, 8804, 9168, 11842, 13206, 13561, 17608, 17763, 23684, 26412, 27122, 35216, 35526, 40683, 47368, 52824, 54244, 71052, 81366, 94736, 105648, 108488, 142104, 162732, 216976, 284208, 325464, 420391, 650928, 840782, 1261173, 1681564, 2522346, 3363128, 5044692, 6726256, 10089384, 20178768]

約数ペア:

[(1, 20178768), (2, 10089384), (3, 6726256), (4, 5044692), (6, 3363128), (8, 2522346), (12, 1681564), (16, 1261173), (24, 840782), (31, 650928), (48, 420391), (62, 325464), (71, 284208), (93, 216976), (124, 162732), (142, 142104), (186, 108488), (191, 105648), (213, 94736), (248, 81366), (284, 71052), (372, 54244), (382, 52824), (426, 47368), (496, 40683), (568, 35526), (573, 35216), (744, 27122), (764, 26412), (852, 23684), (1136, 17763), (1146, 17608), (1488, 13561), (1528, 13206), (1704, 11842), (2201, 9168), (2292, 8804), (3056, 6603), (3408, 5921), (4402, 4584)]