18978725675

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{547}}^1$

素因数の和:829

約数の個数: 96

約数和(自身を含む): 29498778624

約数和(自身を除く): 10520052949

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 101, 151, 175, 325, 455, 505, 547, 707, 755, 1057, 1313, 1963, 2275, 2525, 2735, 3535, 3775, 3829, 5285, 6565, 7111, 9191, 9815, 13675, 13741, 15251, 17675, 19145, 26425, 32825, 35555, 45955, 49075, 49777, 55247, 68705, 76255, 82597, 95725, 106757, 177775, 198263, 229775, 248885, 276235, 343525, 381275, 386729, 412985, 533785, 578179, 718211, 991315, 1073761, 1244425, 1381175, 1387841, 1933645, 2064925, 2668925, 2890895, 3591055, 4956575, 5027477, 5368805, 6939205, 7516327, 8342297, 9668225, 14454475, 17955275, 25137385, 26844025, 34696025, 37581635, 41711485, 58396079, 108449861, 125686925, 187908175, 208557425, 291980395, 542249305, 759149027, 1459901975, 2711246525, 3795745135, 18978725675]

約数ペア:

[(1, 18978725675), (5, 3795745135), (7, 2711246525), (13, 1459901975), (25, 759149027), (35, 542249305), (65, 291980395), (91, 208557425), (101, 187908175), (151, 125686925), (175, 108449861), (325, 58396079), (455, 41711485), (505, 37581635), (547, 34696025), (707, 26844025), (755, 25137385), (1057, 17955275), (1313, 14454475), (1963, 9668225), (2275, 8342297), (2525, 7516327), (2735, 6939205), (3535, 5368805), (3775, 5027477), (3829, 4956575), (5285, 3591055), (6565, 2890895), (7111, 2668925), (9191, 2064925), (9815, 1933645), (13675, 1387841), (13741, 1381175), (15251, 1244425), (17675, 1073761), (19145, 991315), (26425, 718211), (32825, 578179), (35555, 533785), (45955, 412985), (49075, 386729), (49777, 381275), (55247, 343525), (68705, 276235), (76255, 248885), (82597, 229775), (95725, 198263), (106757, 177775)]