128957928

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^4\times {\mathrm{367}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 355598400

約数和(自身を除く): 226640472

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 121, 132, 242, 264, 363, 367, 484, 726, 734, 968, 1101, 1331, 1452, 1468, 2202, 2662, 2904, 2936, 3993, 4037, 4404, 5324, 7986, 8074, 8808, 10648, 12111, 14641, 15972, 16148, 24222, 29282, 31944, 32296, 43923, 44407, 48444, 58564, 87846, 88814, 96888, 117128, 133221, 175692, 177628, 266442, 351384, 355256, 488477, 532884, 976954, 1065768, 1465431, 1953908, 2930862, 3907816, 5373247, 5861724, 10746494, 11723448, 16119741, 21492988, 32239482, 42985976, 64478964, 128957928]

約数ペア:

[(1, 128957928), (2, 64478964), (3, 42985976), (4, 32239482), (6, 21492988), (8, 16119741), (11, 11723448), (12, 10746494), (22, 5861724), (24, 5373247), (33, 3907816), (44, 2930862), (66, 1953908), (88, 1465431), (121, 1065768), (132, 976954), (242, 532884), (264, 488477), (363, 355256), (367, 351384), (484, 266442), (726, 177628), (734, 175692), (968, 133221), (1101, 117128), (1331, 96888), (1452, 88814), (1468, 87846), (2202, 58564), (2662, 48444), (2904, 44407), (2936, 43923), (3993, 32296), (4037, 31944), (4404, 29282), (5324, 24222), (7986, 16148), (8074, 15972), (8808, 14641), (10648, 12111)]