201861790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 402796800

約数和(自身を除く): 200935010

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 89, 130, 146, 178, 239, 365, 445, 478, 730, 890, 949, 1157, 1195, 1898, 2314, 2390, 3107, 4745, 5785, 6214, 6497, 9490, 11570, 12994, 15535, 17447, 21271, 31070, 32485, 34894, 42542, 64970, 84461, 87235, 106355, 168922, 174470, 212710, 226811, 276523, 422305, 453622, 553046, 844610, 1134055, 1382615, 1552783, 2268110, 2765230, 3105566, 7763915, 15527830, 20186179, 40372358, 100930895, 201861790]

約数ペア:

[(1, 201861790), (2, 100930895), (5, 40372358), (10, 20186179), (13, 15527830), (26, 7763915), (65, 3105566), (73, 2765230), (89, 2268110), (130, 1552783), (146, 1382615), (178, 1134055), (239, 844610), (365, 553046), (445, 453622), (478, 422305), (730, 276523), (890, 226811), (949, 212710), (1157, 174470), (1195, 168922), (1898, 106355), (2314, 87235), (2390, 84461), (3107, 64970), (4745, 42542), (5785, 34894), (6214, 32485), (6497, 31070), (9490, 21271), (11570, 17447), (12994, 15535)]