20818170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1019}}^1$

素因数の和:1259

約数の個数: 48

約数和(自身を含む): 54419040

約数和(自身を除く): 33600870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 227, 454, 681, 1019, 1135, 1362, 2038, 2043, 2270, 3057, 3405, 4086, 5095, 6114, 6810, 9171, 10190, 10215, 15285, 18342, 20430, 30570, 45855, 91710, 231313, 462626, 693939, 1156565, 1387878, 2081817, 2313130, 3469695, 4163634, 6939390, 10409085, 20818170]

約数ペア:

[(1, 20818170), (2, 10409085), (3, 6939390), (5, 4163634), (6, 3469695), (9, 2313130), (10, 2081817), (15, 1387878), (18, 1156565), (30, 693939), (45, 462626), (90, 231313), (227, 91710), (454, 45855), (681, 30570), (1019, 20430), (1135, 18342), (1362, 15285), (2038, 10215), (2043, 10190), (2270, 9171), (3057, 6810), (3405, 6114), (4086, 5095)]