90440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:54

約数の個数: 64

約数和(自身を含む): 259200

約数和(自身を除く): 168760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1615, 2261, 2380, 2584, 2660, 3230, 4522, 4760, 5320, 6460, 9044, 11305, 12920, 18088, 22610, 45220, 90440]

約数ペア:

[(1, 90440), (2, 45220), (4, 22610), (5, 18088), (7, 12920), (8, 11305), (10, 9044), (14, 6460), (17, 5320), (19, 4760), (20, 4522), (28, 3230), (34, 2660), (35, 2584), (38, 2380), (40, 2261), (56, 1615), (68, 1330), (70, 1292), (76, 1190), (85, 1064), (95, 952), (119, 760), (133, 680), (136, 665), (140, 646), (152, 595), (170, 532), (190, 476), (238, 380), (266, 340), (280, 323)]