20132420425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{191783}}^1$

素因数の和:191842

約数の個数: 48

約数和(自身を含む): 29964332160

約数和(自身を除く): 9831911735

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 221, 247, 323, 325, 425, 475, 1105, 1235, 1615, 4199, 5525, 6175, 8075, 20995, 104975, 191783, 958915, 2493179, 3260311, 3643877, 4794575, 12465895, 16301555, 18219385, 42384043, 47370401, 61945909, 62329475, 81507775, 91096925, 211920215, 236852005, 309729545, 805296817, 1059601075, 1184260025, 1548647725, 4026484085, 20132420425]

約数ペア:

[(1, 20132420425), (5, 4026484085), (13, 1548647725), (17, 1184260025), (19, 1059601075), (25, 805296817), (65, 309729545), (85, 236852005), (95, 211920215), (221, 91096925), (247, 81507775), (323, 62329475), (325, 61945909), (425, 47370401), (475, 42384043), (1105, 18219385), (1235, 16301555), (1615, 12465895), (4199, 4794575), (5525, 3643877), (6175, 3260311), (8075, 2493179), (20995, 958915), (104975, 191783)]