64479440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:328

約数の個数: 80

約数和(自身を含む): 155312976

約数和(自身を除く): 90833536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 73, 80, 122, 146, 181, 244, 292, 305, 362, 365, 488, 584, 610, 724, 730, 905, 976, 1168, 1220, 1448, 1460, 1810, 2440, 2896, 2920, 3620, 4453, 4880, 5840, 7240, 8906, 11041, 13213, 14480, 17812, 22082, 22265, 26426, 35624, 44164, 44530, 52852, 55205, 66065, 71248, 88328, 89060, 105704, 110410, 132130, 176656, 178120, 211408, 220820, 264260, 356240, 441640, 528520, 805993, 883280, 1057040, 1611986, 3223972, 4029965, 6447944, 8059930, 12895888, 16119860, 32239720, 64479440]

約数ペア:

[(1, 64479440), (2, 32239720), (4, 16119860), (5, 12895888), (8, 8059930), (10, 6447944), (16, 4029965), (20, 3223972), (40, 1611986), (61, 1057040), (73, 883280), (80, 805993), (122, 528520), (146, 441640), (181, 356240), (244, 264260), (292, 220820), (305, 211408), (362, 178120), (365, 176656), (488, 132130), (584, 110410), (610, 105704), (724, 89060), (730, 88328), (905, 71248), (976, 66065), (1168, 55205), (1220, 52852), (1448, 44530), (1460, 44164), (1810, 35624), (2440, 26426), (2896, 22265), (2920, 22082), (3620, 17812), (4453, 14480), (4880, 13213), (5840, 11041), (7240, 8906)]