20558270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 21245506

約数列:

[1, 2, 5, 10, 17, 31, 34, 47, 62, 83, 85, 94, 155, 166, 170, 235, 310, 415, 470, 527, 799, 830, 1054, 1411, 1457, 1598, 2573, 2635, 2822, 2914, 3901, 3995, 5146, 5270, 7055, 7285, 7802, 7990, 12865, 14110, 14570, 19505, 24769, 25730, 39010, 43741, 49538, 66317, 87482, 120931, 123845, 132634, 218705, 241862, 247690, 331585, 437410, 604655, 663170, 1209310, 2055827, 4111654, 10279135, 20558270]

約数ペア:

[(1, 20558270), (2, 10279135), (5, 4111654), (10, 2055827), (17, 1209310), (31, 663170), (34, 604655), (47, 437410), (62, 331585), (83, 247690), (85, 241862), (94, 218705), (155, 132634), (166, 123845), (170, 120931), (235, 87482), (310, 66317), (415, 49538), (470, 43741), (527, 39010), (799, 25730), (830, 24769), (1054, 19505), (1411, 14570), (1457, 14110), (1598, 12865), (2573, 7990), (2635, 7802), (2822, 7285), (2914, 7055), (3901, 5270), (3995, 5146)]