7868720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2399}}^1$

素因数の和:2453

約数の個数: 40

約数和(自身を含む): 18748800

約数和(自身を除く): 10880080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2399, 3280, 4798, 9596, 11995, 19192, 23990, 38384, 47980, 95960, 98359, 191920, 196718, 393436, 491795, 786872, 983590, 1573744, 1967180, 3934360, 7868720]

約数ペア:

[(1, 7868720), (2, 3934360), (4, 1967180), (5, 1573744), (8, 983590), (10, 786872), (16, 491795), (20, 393436), (40, 196718), (41, 191920), (80, 98359), (82, 95960), (164, 47980), (205, 38384), (328, 23990), (410, 19192), (656, 11995), (820, 9596), (1640, 4798), (2399, 3280)]