20905410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 53654400

約数和(自身を除く): 32748990

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 179, 229, 255, 358, 458, 510, 537, 687, 895, 1074, 1145, 1374, 1790, 2290, 2685, 3043, 3435, 3893, 5370, 6086, 6870, 7786, 9129, 11679, 15215, 18258, 19465, 23358, 30430, 38930, 40991, 45645, 58395, 81982, 91290, 116790, 122973, 204955, 245946, 409910, 614865, 696847, 1229730, 1393694, 2090541, 3484235, 4181082, 6968470, 10452705, 20905410]

約数ペア:

[(1, 20905410), (2, 10452705), (3, 6968470), (5, 4181082), (6, 3484235), (10, 2090541), (15, 1393694), (17, 1229730), (30, 696847), (34, 614865), (51, 409910), (85, 245946), (102, 204955), (170, 122973), (179, 116790), (229, 91290), (255, 81982), (358, 58395), (458, 45645), (510, 40991), (537, 38930), (687, 30430), (895, 23358), (1074, 19465), (1145, 18258), (1374, 15215), (1790, 11679), (2290, 9129), (2685, 7786), (3043, 6870), (3435, 6086), (3893, 5370)]