217121740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 528998400

約数和(自身を除く): 311876660

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 127, 190, 209, 220, 254, 380, 409, 418, 508, 635, 818, 836, 1045, 1270, 1397, 1636, 2045, 2090, 2413, 2540, 2794, 4090, 4180, 4499, 4826, 5588, 6985, 7771, 8180, 8998, 9652, 12065, 13970, 15542, 17996, 22495, 24130, 26543, 27940, 31084, 38855, 44990, 48260, 51943, 53086, 77710, 85481, 89980, 103886, 106172, 132715, 155420, 170962, 207772, 259715, 265430, 341924, 427405, 519430, 530860, 571373, 854810, 986917, 1038860, 1142746, 1709620, 1973834, 2285492, 2856865, 3947668, 4934585, 5713730, 9869170, 10856087, 11427460, 19738340, 21712174, 43424348, 54280435, 108560870, 217121740]

約数ペア:

[(1, 217121740), (2, 108560870), (4, 54280435), (5, 43424348), (10, 21712174), (11, 19738340), (19, 11427460), (20, 10856087), (22, 9869170), (38, 5713730), (44, 4934585), (55, 3947668), (76, 2856865), (95, 2285492), (110, 1973834), (127, 1709620), (190, 1142746), (209, 1038860), (220, 986917), (254, 854810), (380, 571373), (409, 530860), (418, 519430), (508, 427405), (635, 341924), (818, 265430), (836, 259715), (1045, 207772), (1270, 170962), (1397, 155420), (1636, 132715), (2045, 106172), (2090, 103886), (2413, 89980), (2540, 85481), (2794, 77710), (4090, 53086), (4180, 51943), (4499, 48260), (4826, 44990), (5588, 38855), (6985, 31084), (7771, 27940), (8180, 26543), (8998, 24130), (9652, 22495), (12065, 17996), (13970, 15542)]