28821276

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1091

約数の個数: 72

約数和(自身を含む): 80646384

約数和(自身を除く): 51825108

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 73, 99, 132, 146, 198, 219, 292, 396, 438, 657, 803, 876, 997, 1314, 1606, 1994, 2409, 2628, 2991, 3212, 3988, 4818, 5982, 7227, 8973, 9636, 10967, 11964, 14454, 17946, 21934, 28908, 32901, 35892, 43868, 65802, 72781, 98703, 131604, 145562, 197406, 218343, 291124, 394812, 436686, 655029, 800591, 873372, 1310058, 1601182, 2401773, 2620116, 3202364, 4803546, 7205319, 9607092, 14410638, 28821276]

約数ペア:

[(1, 28821276), (2, 14410638), (3, 9607092), (4, 7205319), (6, 4803546), (9, 3202364), (11, 2620116), (12, 2401773), (18, 1601182), (22, 1310058), (33, 873372), (36, 800591), (44, 655029), (66, 436686), (73, 394812), (99, 291124), (132, 218343), (146, 197406), (198, 145562), (219, 131604), (292, 98703), (396, 72781), (438, 65802), (657, 43868), (803, 35892), (876, 32901), (997, 28908), (1314, 21934), (1606, 17946), (1994, 14454), (2409, 11964), (2628, 10967), (2991, 9636), (3212, 8973), (3988, 7227), (4818, 5982)]