18989970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15439}}^1$

素因数の和:15490

約数の個数: 32

約数和(自身を含む): 46690560

約数和(自身を除く): 27700590

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 15439, 30878, 46317, 77195, 92634, 154390, 231585, 463170, 632999, 1265998, 1898997, 3164995, 3797994, 6329990, 9494985, 18989970]

約数ペア:

[(1, 18989970), (2, 9494985), (3, 6329990), (5, 3797994), (6, 3164995), (10, 1898997), (15, 1265998), (30, 632999), (41, 463170), (82, 231585), (123, 154390), (205, 92634), (246, 77195), (410, 46317), (615, 30878), (1230, 15439)]