397756970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{431}}^1$

素因数の和:711

約数の個数: 64

約数和(自身を含む): 801239040

約数和(自身を除く): 403482070

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 229, 310, 403, 431, 458, 806, 862, 1145, 2015, 2155, 2290, 2977, 4030, 4310, 5603, 5954, 7099, 11206, 13361, 14198, 14885, 26722, 28015, 29770, 35495, 56030, 66805, 70990, 92287, 98699, 133610, 173693, 184574, 197398, 347386, 461435, 493495, 868465, 922870, 986990, 1283087, 1736930, 2566174, 3059669, 6119338, 6415435, 12830870, 15298345, 30596690, 39775697, 79551394, 198878485, 397756970]

約数ペア:

[(1, 397756970), (2, 198878485), (5, 79551394), (10, 39775697), (13, 30596690), (26, 15298345), (31, 12830870), (62, 6415435), (65, 6119338), (130, 3059669), (155, 2566174), (229, 1736930), (310, 1283087), (403, 986990), (431, 922870), (458, 868465), (806, 493495), (862, 461435), (1145, 347386), (2015, 197398), (2155, 184574), (2290, 173693), (2977, 133610), (4030, 98699), (4310, 92287), (5603, 70990), (5954, 66805), (7099, 56030), (11206, 35495), (13361, 29770), (14198, 28015), (14885, 26722)]