81121620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79531}}^1$

素因数の和:79560

約数の個数: 48

約数和(自身を含む): 240504768

約数和(自身を除く): 159383148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 79531, 159062, 238593, 318124, 397655, 477186, 795310, 954372, 1192965, 1352027, 1590620, 2385930, 2704054, 4056081, 4771860, 5408108, 6760135, 8112162, 13520270, 16224324, 20280405, 27040540, 40560810, 81121620]

約数ペア:

[(1, 81121620), (2, 40560810), (3, 27040540), (4, 20280405), (5, 16224324), (6, 13520270), (10, 8112162), (12, 6760135), (15, 5408108), (17, 4771860), (20, 4056081), (30, 2704054), (34, 2385930), (51, 1590620), (60, 1352027), (68, 1192965), (85, 954372), (102, 795310), (170, 477186), (204, 397655), (255, 318124), (340, 238593), (510, 159062), (1020, 79531)]