397134020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 870208920

約数和(自身を除く): 473074900

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 101, 178, 188, 202, 235, 356, 404, 445, 470, 505, 890, 940, 1010, 1780, 2020, 2209, 4183, 4418, 4747, 8366, 8836, 8989, 9494, 11045, 16732, 17978, 18988, 20915, 22090, 23735, 35956, 41830, 44180, 44945, 47470, 83660, 89890, 94940, 179780, 196601, 223109, 393202, 422483, 446218, 786404, 844966, 892436, 983005, 1115545, 1689932, 1966010, 2112415, 2231090, 3932020, 4224830, 4462180, 8449660, 19856701, 39713402, 79426804, 99283505, 198567010, 397134020]

約数ペア:

[(1, 397134020), (2, 198567010), (4, 99283505), (5, 79426804), (10, 39713402), (20, 19856701), (47, 8449660), (89, 4462180), (94, 4224830), (101, 3932020), (178, 2231090), (188, 2112415), (202, 1966010), (235, 1689932), (356, 1115545), (404, 983005), (445, 892436), (470, 844966), (505, 786404), (890, 446218), (940, 422483), (1010, 393202), (1780, 223109), (2020, 196601), (2209, 179780), (4183, 94940), (4418, 89890), (4747, 83660), (8366, 47470), (8836, 44945), (8989, 44180), (9494, 41830), (11045, 35956), (16732, 23735), (17978, 22090), (18988, 20915)]