18619990

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 34577280

約数和(自身を除く): 15957290

約数列:

[1, 2, 5, 10, 47, 94, 173, 229, 235, 346, 458, 470, 865, 1145, 1730, 2290, 8131, 10763, 16262, 21526, 39617, 40655, 53815, 79234, 81310, 107630, 198085, 396170, 1861999, 3723998, 9309995, 18619990]

約数ペア:

[(1, 18619990), (2, 9309995), (5, 3723998), (10, 1861999), (47, 396170), (94, 198085), (173, 107630), (229, 81310), (235, 79234), (346, 53815), (458, 40655), (470, 39617), (865, 21526), (1145, 16262), (1730, 10763), (2290, 8131)]