20172958875

素因数分解:

$3^4\times 5^3\times {\mathrm{137}}^1\times {\mathrm{14543}}^1$

素因数の和:14707

約数の個数: 80

約数和(自身を含む): 37885491072

約数和(自身を除く): 17712532197

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 137, 225, 375, 405, 411, 675, 685, 1125, 1233, 2025, 2055, 3375, 3425, 3699, 6165, 10125, 10275, 11097, 14543, 17125, 18495, 30825, 43629, 51375, 55485, 72715, 92475, 130887, 154125, 218145, 277425, 363575, 392661, 462375, 654435, 1090725, 1177983, 1387125, 1817875, 1963305, 1992391, 3272175, 5453625, 5889915, 5977173, 9816525, 9961955, 16360875, 17931519, 29449575, 29885865, 49082625, 49809775, 53794557, 89657595, 147247875, 149429325, 161383671, 249048875, 268972785, 448287975, 747146625, 806918355, 1344863925, 2241439875, 4034591775, 6724319625, 20172958875]

約数ペア:

[(1, 20172958875), (3, 6724319625), (5, 4034591775), (9, 2241439875), (15, 1344863925), (25, 806918355), (27, 747146625), (45, 448287975), (75, 268972785), (81, 249048875), (125, 161383671), (135, 149429325), (137, 147247875), (225, 89657595), (375, 53794557), (405, 49809775), (411, 49082625), (675, 29885865), (685, 29449575), (1125, 17931519), (1233, 16360875), (2025, 9961955), (2055, 9816525), (3375, 5977173), (3425, 5889915), (3699, 5453625), (6165, 3272175), (10125, 1992391), (10275, 1963305), (11097, 1817875), (14543, 1387125), (17125, 1177983), (18495, 1090725), (30825, 654435), (43629, 462375), (51375, 392661), (55485, 363575), (72715, 277425), (92475, 218145), (130887, 154125)]