20538430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 43960320

約数和(自身を除く): 23421890

約数列:

[1, 2, 5, 10, 11, 19, 22, 31, 38, 55, 62, 95, 110, 155, 190, 209, 310, 317, 341, 418, 589, 634, 682, 1045, 1178, 1585, 1705, 2090, 2945, 3170, 3410, 3487, 5890, 6023, 6479, 6974, 9827, 12046, 12958, 17435, 19654, 30115, 32395, 34870, 49135, 60230, 64790, 66253, 98270, 108097, 132506, 186713, 216194, 331265, 373426, 540485, 662530, 933565, 1080970, 1867130, 2053843, 4107686, 10269215, 20538430]

約数ペア:

[(1, 20538430), (2, 10269215), (5, 4107686), (10, 2053843), (11, 1867130), (19, 1080970), (22, 933565), (31, 662530), (38, 540485), (55, 373426), (62, 331265), (95, 216194), (110, 186713), (155, 132506), (190, 108097), (209, 98270), (310, 66253), (317, 64790), (341, 60230), (418, 49135), (589, 34870), (634, 32395), (682, 30115), (1045, 19654), (1178, 17435), (1585, 12958), (1705, 12046), (2090, 9827), (2945, 6974), (3170, 6479), (3410, 6023), (3487, 5890)]