261588702920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{941}}^1\times {\mathrm{408809}}^1$

素因数の和:409778

約数の個数: 64

約数和(自身を含む): 623860412400

約数和(自身を除く): 362271709480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 941, 1882, 3764, 4705, 7528, 9410, 15997, 18820, 31994, 37640, 63988, 79985, 127976, 159970, 319940, 408809, 639880, 817618, 1635236, 2044045, 3270472, 4088090, 6949753, 8176180, 13899506, 16352360, 27799012, 34748765, 55598024, 69497530, 138995060, 277990120, 384689269, 769378538, 1538757076, 1923446345, 3077514152, 3846892690, 6539717573, 7693785380, 13079435146, 15387570760, 26158870292, 32698587865, 52317740584, 65397175730, 130794351460, 261588702920]

約数ペア:

[(1, 261588702920), (2, 130794351460), (4, 65397175730), (5, 52317740584), (8, 32698587865), (10, 26158870292), (17, 15387570760), (20, 13079435146), (34, 7693785380), (40, 6539717573), (68, 3846892690), (85, 3077514152), (136, 1923446345), (170, 1538757076), (340, 769378538), (680, 384689269), (941, 277990120), (1882, 138995060), (3764, 69497530), (4705, 55598024), (7528, 34748765), (9410, 27799012), (15997, 16352360), (18820, 13899506), (31994, 8176180), (37640, 6949753), (63988, 4088090), (79985, 3270472), (127976, 2044045), (159970, 1635236), (319940, 817618), (408809, 639880)]