19550350

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 38278800

約数和(自身を除く): 18728450

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 97, 139, 145, 194, 278, 290, 485, 695, 725, 970, 1390, 1450, 2425, 2813, 3475, 4031, 4850, 5626, 6950, 8062, 13483, 14065, 20155, 26966, 28130, 40310, 67415, 70325, 100775, 134830, 140650, 201550, 337075, 391007, 674150, 782014, 1955035, 3910070, 9775175, 19550350]

約数ペア:

[(1, 19550350), (2, 9775175), (5, 3910070), (10, 1955035), (25, 782014), (29, 674150), (50, 391007), (58, 337075), (97, 201550), (139, 140650), (145, 134830), (194, 100775), (278, 70325), (290, 67415), (485, 40310), (695, 28130), (725, 26966), (970, 20155), (1390, 14065), (1450, 13483), (2425, 8062), (2813, 6950), (3475, 5626), (4031, 4850)]