20345238

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:178

約数の個数: 72

約数和(自身を含む): 48499776

約数和(自身を除く): 28154538

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 101, 114, 171, 186, 202, 279, 303, 342, 361, 558, 589, 606, 722, 909, 1083, 1178, 1767, 1818, 1919, 2166, 3131, 3249, 3534, 3838, 5301, 5757, 6262, 6498, 9393, 10602, 11191, 11514, 17271, 18786, 22382, 28179, 33573, 34542, 36461, 56358, 59489, 67146, 72922, 100719, 109383, 118978, 178467, 201438, 218766, 328149, 356934, 535401, 656298, 1070802, 1130291, 2260582, 3390873, 6781746, 10172619, 20345238]

約数ペア:

[(1, 20345238), (2, 10172619), (3, 6781746), (6, 3390873), (9, 2260582), (18, 1130291), (19, 1070802), (31, 656298), (38, 535401), (57, 356934), (62, 328149), (93, 218766), (101, 201438), (114, 178467), (171, 118978), (186, 109383), (202, 100719), (279, 72922), (303, 67146), (342, 59489), (361, 56358), (558, 36461), (589, 34542), (606, 33573), (722, 28179), (909, 22382), (1083, 18786), (1178, 17271), (1767, 11514), (1818, 11191), (1919, 10602), (2166, 9393), (3131, 6498), (3249, 6262), (3534, 5757), (3838, 5301)]