28259440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1889}}^1$

素因数の和:1930

約数の個数: 80

約数和(自身を含む): 75932640

約数和(自身を除く): 47673200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 1889, 2992, 3740, 3778, 7480, 7556, 9445, 14960, 15112, 18890, 20779, 30224, 32113, 37780, 41558, 64226, 75560, 83116, 103895, 128452, 151120, 160565, 166232, 207790, 256904, 321130, 332464, 353243, 415580, 513808, 642260, 706486, 831160, 1284520, 1412972, 1662320, 1766215, 2569040, 2825944, 3532430, 5651888, 7064860, 14129720, 28259440]

約数ペア:

[(1, 28259440), (2, 14129720), (4, 7064860), (5, 5651888), (8, 3532430), (10, 2825944), (11, 2569040), (16, 1766215), (17, 1662320), (20, 1412972), (22, 1284520), (34, 831160), (40, 706486), (44, 642260), (55, 513808), (68, 415580), (80, 353243), (85, 332464), (88, 321130), (110, 256904), (136, 207790), (170, 166232), (176, 160565), (187, 151120), (220, 128452), (272, 103895), (340, 83116), (374, 75560), (440, 64226), (680, 41558), (748, 37780), (880, 32113), (935, 30224), (1360, 20779), (1496, 18890), (1870, 15112), (1889, 14960), (2992, 9445), (3740, 7556), (3778, 7480)]