81738684

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1637}}^1$

素因数の和:1739

約数の個数: 72

約数和(自身を含む): 220605840

約数和(自身を除く): 138867156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 73, 76, 114, 146, 171, 219, 228, 292, 342, 438, 657, 684, 876, 1314, 1387, 1637, 2628, 2774, 3274, 4161, 4911, 5548, 6548, 8322, 9822, 12483, 14733, 16644, 19644, 24966, 29466, 31103, 49932, 58932, 62206, 93309, 119501, 124412, 186618, 239002, 279927, 358503, 373236, 478004, 559854, 717006, 1075509, 1119708, 1434012, 2151018, 2270519, 4302036, 4541038, 6811557, 9082076, 13623114, 20434671, 27246228, 40869342, 81738684]

約数ペア:

[(1, 81738684), (2, 40869342), (3, 27246228), (4, 20434671), (6, 13623114), (9, 9082076), (12, 6811557), (18, 4541038), (19, 4302036), (36, 2270519), (38, 2151018), (57, 1434012), (73, 1119708), (76, 1075509), (114, 717006), (146, 559854), (171, 478004), (219, 373236), (228, 358503), (292, 279927), (342, 239002), (438, 186618), (657, 124412), (684, 119501), (876, 93309), (1314, 62206), (1387, 58932), (1637, 49932), (2628, 31103), (2774, 29466), (3274, 24966), (4161, 19644), (4911, 16644), (5548, 14733), (6548, 12483), (8322, 9822)]