28256312

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 65214720

約数和(自身を除く): 36958408

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 67, 68, 119, 134, 136, 238, 268, 443, 469, 476, 536, 886, 938, 952, 1139, 1772, 1876, 2278, 3101, 3544, 3752, 4556, 6202, 7531, 7973, 9112, 12404, 15062, 15946, 24808, 29681, 30124, 31892, 52717, 59362, 60248, 63784, 105434, 118724, 207767, 210868, 237448, 415534, 421736, 504577, 831068, 1009154, 1662136, 2018308, 3532039, 4036616, 7064078, 14128156, 28256312]

約数ペア:

[(1, 28256312), (2, 14128156), (4, 7064078), (7, 4036616), (8, 3532039), (14, 2018308), (17, 1662136), (28, 1009154), (34, 831068), (56, 504577), (67, 421736), (68, 415534), (119, 237448), (134, 210868), (136, 207767), (238, 118724), (268, 105434), (443, 63784), (469, 60248), (476, 59362), (536, 52717), (886, 31892), (938, 30124), (952, 29681), (1139, 24808), (1772, 15946), (1876, 15062), (2278, 12404), (3101, 9112), (3544, 7973), (3752, 7531), (4556, 6202)]