20306178

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 45906432

約数和(自身を除く): 25600254

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 151, 186, 241, 279, 302, 453, 482, 558, 723, 906, 1359, 1446, 2169, 2718, 4338, 4681, 7471, 9362, 14043, 14942, 22413, 28086, 36391, 42129, 44826, 67239, 72782, 84258, 109173, 134478, 218346, 327519, 655038, 1128121, 2256242, 3384363, 6768726, 10153089, 20306178]

約数ペア:

[(1, 20306178), (2, 10153089), (3, 6768726), (6, 3384363), (9, 2256242), (18, 1128121), (31, 655038), (62, 327519), (93, 218346), (151, 134478), (186, 109173), (241, 84258), (279, 72782), (302, 67239), (453, 44826), (482, 42129), (558, 36391), (723, 28086), (906, 22413), (1359, 14942), (1446, 14043), (2169, 9362), (2718, 7471), (4338, 4681)]