1283440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:337

約数の個数: 40

約数和(自身を含む): 3044448

約数和(自身を除く): 1761008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 263, 305, 488, 526, 610, 976, 1052, 1220, 1315, 2104, 2440, 2630, 4208, 4880, 5260, 10520, 16043, 21040, 32086, 64172, 80215, 128344, 160430, 256688, 320860, 641720, 1283440]

約数ペア:

[(1, 1283440), (2, 641720), (4, 320860), (5, 256688), (8, 160430), (10, 128344), (16, 80215), (20, 64172), (40, 32086), (61, 21040), (80, 16043), (122, 10520), (244, 5260), (263, 4880), (305, 4208), (488, 2630), (526, 2440), (610, 2104), (976, 1315), (1052, 1220)]