20757804

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{503}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 30609876

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 181, 228, 362, 503, 543, 724, 1006, 1086, 1509, 2012, 2172, 3018, 3439, 6036, 6878, 9557, 10317, 13756, 19114, 20634, 28671, 38228, 41268, 57342, 91043, 114684, 182086, 273129, 364172, 546258, 1092516, 1729817, 3459634, 5189451, 6919268, 10378902, 20757804]

約数ペア:

[(1, 20757804), (2, 10378902), (3, 6919268), (4, 5189451), (6, 3459634), (12, 1729817), (19, 1092516), (38, 546258), (57, 364172), (76, 273129), (114, 182086), (181, 114684), (228, 91043), (362, 57342), (503, 41268), (543, 38228), (724, 28671), (1006, 20634), (1086, 19114), (1509, 13756), (2012, 10317), (2172, 9557), (3018, 6878), (3439, 6036)]