16729120820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{61681}}^1$

素因数の和:61952

約数の個数: 48

約数和(自身を含む): 35813062656

約数和(自身を除く): 19083941836

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 191, 284, 355, 382, 710, 764, 955, 1420, 1910, 3820, 13561, 27122, 54244, 61681, 67805, 123362, 135610, 246724, 271220, 308405, 616810, 1233620, 4379351, 8758702, 11781071, 17517404, 21896755, 23562142, 43793510, 47124284, 58905355, 87587020, 117810710, 235621420, 836456041, 1672912082, 3345824164, 4182280205, 8364560410, 16729120820]

約数ペア:

[(1, 16729120820), (2, 8364560410), (4, 4182280205), (5, 3345824164), (10, 1672912082), (20, 836456041), (71, 235621420), (142, 117810710), (191, 87587020), (284, 58905355), (355, 47124284), (382, 43793510), (710, 23562142), (764, 21896755), (955, 17517404), (1420, 11781071), (1910, 8758702), (3820, 4379351), (13561, 1233620), (27122, 616810), (54244, 308405), (61681, 271220), (67805, 246724), (123362, 135610)]