20567690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{757}}^1$

素因数の和:807

約数の個数: 64

約数和(自身を含む): 45843840

約数和(自身を除く): 25276150

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 95, 110, 130, 143, 190, 209, 247, 286, 418, 494, 715, 757, 1045, 1235, 1430, 1514, 2090, 2470, 2717, 3785, 5434, 7570, 8327, 9841, 13585, 14383, 16654, 19682, 27170, 28766, 41635, 49205, 71915, 83270, 98410, 108251, 143830, 158213, 186979, 216502, 316426, 373958, 541255, 791065, 934895, 1082510, 1582130, 1869790, 2056769, 4113538, 10283845, 20567690]

約数ペア:

[(1, 20567690), (2, 10283845), (5, 4113538), (10, 2056769), (11, 1869790), (13, 1582130), (19, 1082510), (22, 934895), (26, 791065), (38, 541255), (55, 373958), (65, 316426), (95, 216502), (110, 186979), (130, 158213), (143, 143830), (190, 108251), (209, 98410), (247, 83270), (286, 71915), (418, 49205), (494, 41635), (715, 28766), (757, 27170), (1045, 19682), (1235, 16654), (1430, 14383), (1514, 13585), (2090, 9841), (2470, 8327), (2717, 7570), (3785, 5434)]