19792760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2239}}^1$

素因数の和:2280

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 31010440

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 2239, 4420, 4478, 8840, 8956, 11195, 17912, 22390, 29107, 38063, 44780, 58214, 76126, 89560, 116428, 145535, 152252, 190315, 232856, 291070, 304504, 380630, 494819, 582140, 761260, 989638, 1164280, 1522520, 1979276, 2474095, 3958552, 4948190, 9896380, 19792760]

約数ペア:

[(1, 19792760), (2, 9896380), (4, 4948190), (5, 3958552), (8, 2474095), (10, 1979276), (13, 1522520), (17, 1164280), (20, 989638), (26, 761260), (34, 582140), (40, 494819), (52, 380630), (65, 304504), (68, 291070), (85, 232856), (104, 190315), (130, 152252), (136, 145535), (170, 116428), (221, 89560), (260, 76126), (340, 58214), (442, 44780), (520, 38063), (680, 29107), (884, 22390), (1105, 17912), (1768, 11195), (2210, 8956), (2239, 8840), (4420, 4478)]