19848680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16007}}^1$

素因数の和:16049

約数の個数: 32

約数和(自身を含む): 46103040

約数和(自身を除く): 26254360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16007, 32014, 64028, 80035, 128056, 160070, 320140, 496217, 640280, 992434, 1984868, 2481085, 3969736, 4962170, 9924340, 19848680]

約数ペア:

[(1, 19848680), (2, 9924340), (4, 4962170), (5, 3969736), (8, 2481085), (10, 1984868), (20, 992434), (31, 640280), (40, 496217), (62, 320140), (124, 160070), (155, 128056), (248, 80035), (310, 64028), (620, 32014), (1240, 16007)]