81148390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{3907}}^1$

素因数の和:4012

約数の個数: 32

約数和(自身を含む): 153068544

約数和(自身を除く): 71920154

約数列:

[1, 2, 5, 10, 31, 62, 67, 134, 155, 310, 335, 670, 2077, 3907, 4154, 7814, 10385, 19535, 20770, 39070, 121117, 242234, 261769, 523538, 605585, 1211170, 1308845, 2617690, 8114839, 16229678, 40574195, 81148390]

約数ペア:

[(1, 81148390), (2, 40574195), (5, 16229678), (10, 8114839), (31, 2617690), (62, 1308845), (67, 1211170), (134, 605585), (155, 523538), (310, 261769), (335, 242234), (670, 121117), (2077, 39070), (3907, 20770), (4154, 19535), (7814, 10385)]