181340080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73121}}^1$

素因数の和:73165

約数の個数: 40

約数和(自身を含む): 435222144

約数和(自身を除く): 253882064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 73121, 146242, 292484, 365605, 584968, 731210, 1169936, 1462420, 2266751, 2924840, 4533502, 5849680, 9067004, 11333755, 18134008, 22667510, 36268016, 45335020, 90670040, 181340080]

約数ペア:

[(1, 181340080), (2, 90670040), (4, 45335020), (5, 36268016), (8, 22667510), (10, 18134008), (16, 11333755), (20, 9067004), (31, 5849680), (40, 4533502), (62, 2924840), (80, 2266751), (124, 1462420), (155, 1169936), (248, 731210), (310, 584968), (496, 365605), (620, 292484), (1240, 146242), (2480, 73121)]