2020113820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{87149}}^1$

素因数の和:87238

約数の個数: 48

約数和(自身を含む): 4538772000

約数和(自身を除く): 2518658180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 1159, 1220, 2318, 4636, 5795, 11590, 23180, 87149, 174298, 348596, 435745, 871490, 1655831, 1742980, 3311662, 5316089, 6623324, 8279155, 10632178, 16558310, 21264356, 26580445, 33116620, 53160890, 101005691, 106321780, 202011382, 404022764, 505028455, 1010056910, 2020113820]

約数ペア:

[(1, 2020113820), (2, 1010056910), (4, 505028455), (5, 404022764), (10, 202011382), (19, 106321780), (20, 101005691), (38, 53160890), (61, 33116620), (76, 26580445), (95, 21264356), (122, 16558310), (190, 10632178), (244, 8279155), (305, 6623324), (380, 5316089), (610, 3311662), (1159, 1742980), (1220, 1655831), (2318, 871490), (4636, 435745), (5795, 348596), (11590, 174298), (23180, 87149)]