20294940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 96

約数和(自身を含む): 61072704

約数和(自身を除く): 40777764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 101, 102, 170, 197, 202, 204, 255, 303, 340, 394, 404, 505, 510, 591, 606, 788, 985, 1010, 1020, 1182, 1212, 1515, 1717, 1970, 2020, 2364, 2955, 3030, 3349, 3434, 3940, 5151, 5910, 6060, 6698, 6868, 8585, 10047, 10302, 11820, 13396, 16745, 17170, 19897, 20094, 20604, 25755, 33490, 34340, 39794, 40188, 50235, 51510, 59691, 66980, 79588, 99485, 100470, 103020, 119382, 198970, 200940, 238764, 298455, 338249, 397940, 596910, 676498, 1014747, 1193820, 1352996, 1691245, 2029494, 3382490, 4058988, 5073735, 6764980, 10147470, 20294940]

約数ペア:

[(1, 20294940), (2, 10147470), (3, 6764980), (4, 5073735), (5, 4058988), (6, 3382490), (10, 2029494), (12, 1691245), (15, 1352996), (17, 1193820), (20, 1014747), (30, 676498), (34, 596910), (51, 397940), (60, 338249), (68, 298455), (85, 238764), (101, 200940), (102, 198970), (170, 119382), (197, 103020), (202, 100470), (204, 99485), (255, 79588), (303, 66980), (340, 59691), (394, 51510), (404, 50235), (505, 40188), (510, 39794), (591, 34340), (606, 33490), (788, 25755), (985, 20604), (1010, 20094), (1020, 19897), (1182, 17170), (1212, 16745), (1515, 13396), (1717, 11820), (1970, 10302), (2020, 10047), (2364, 8585), (2955, 6868), (3030, 6698), (3349, 6060), (3434, 5910), (3940, 5151)]