78457890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21977}}^1$

素因数の和:22011

約数の個数: 64

約数和(自身を含む): 227867904

約数和(自身を除く): 149410014

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 34, 35, 42, 51, 70, 85, 102, 105, 119, 170, 210, 238, 255, 357, 510, 595, 714, 1190, 1785, 3570, 21977, 43954, 65931, 109885, 131862, 153839, 219770, 307678, 329655, 373609, 461517, 659310, 747218, 769195, 923034, 1120827, 1538390, 1868045, 2241654, 2307585, 2615263, 3736090, 4615170, 5230526, 5604135, 7845789, 11208270, 13076315, 15691578, 26152630, 39228945, 78457890]

約数ペア:

[(1, 78457890), (2, 39228945), (3, 26152630), (5, 15691578), (6, 13076315), (7, 11208270), (10, 7845789), (14, 5604135), (15, 5230526), (17, 4615170), (21, 3736090), (30, 2615263), (34, 2307585), (35, 2241654), (42, 1868045), (51, 1538390), (70, 1120827), (85, 923034), (102, 769195), (105, 747218), (119, 659310), (170, 461517), (210, 373609), (238, 329655), (255, 307678), (357, 219770), (510, 153839), (595, 131862), (714, 109885), (1190, 65931), (1785, 43954), (3570, 21977)]