19673440

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2999}}^1$

素因数の和:3055

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 27954560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 2999, 3280, 5998, 6560, 11996, 14995, 23992, 29990, 47984, 59980, 95968, 119960, 122959, 239920, 245918, 479840, 491836, 614795, 983672, 1229590, 1967344, 2459180, 3934688, 4918360, 9836720, 19673440]

約数ペア:

[(1, 19673440), (2, 9836720), (4, 4918360), (5, 3934688), (8, 2459180), (10, 1967344), (16, 1229590), (20, 983672), (32, 614795), (40, 491836), (41, 479840), (80, 245918), (82, 239920), (160, 122959), (164, 119960), (205, 95968), (328, 59980), (410, 47984), (656, 29990), (820, 23992), (1312, 14995), (1640, 11996), (2999, 6560), (3280, 5998)]