18838390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{907}}^1$

素因数の和:1012

約数の個数: 32

約数和(自身を含む): 35564544

約数和(自身を除く): 16726154

約数列:

[1, 2, 5, 10, 31, 62, 67, 134, 155, 310, 335, 670, 907, 1814, 2077, 4154, 4535, 9070, 10385, 20770, 28117, 56234, 60769, 121538, 140585, 281170, 303845, 607690, 1883839, 3767678, 9419195, 18838390]

約数ペア:

[(1, 18838390), (2, 9419195), (5, 3767678), (10, 1883839), (31, 607690), (62, 303845), (67, 281170), (134, 140585), (155, 121538), (310, 60769), (335, 56234), (670, 28117), (907, 20770), (1814, 10385), (2077, 9070), (4154, 4535)]