20630556

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 54250560

約数和(自身を除く): 33620004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 89, 94, 137, 141, 178, 188, 267, 274, 282, 356, 411, 423, 534, 548, 564, 801, 822, 846, 1068, 1233, 1602, 1644, 1692, 2466, 3204, 4183, 4932, 6439, 8366, 12193, 12549, 12878, 16732, 19317, 24386, 25098, 25756, 36579, 37647, 38634, 48772, 50196, 57951, 73158, 75294, 77268, 109737, 115902, 146316, 150588, 219474, 231804, 438948, 573071, 1146142, 1719213, 2292284, 3438426, 5157639, 6876852, 10315278, 20630556]

約数ペア:

[(1, 20630556), (2, 10315278), (3, 6876852), (4, 5157639), (6, 3438426), (9, 2292284), (12, 1719213), (18, 1146142), (36, 573071), (47, 438948), (89, 231804), (94, 219474), (137, 150588), (141, 146316), (178, 115902), (188, 109737), (267, 77268), (274, 75294), (282, 73158), (356, 57951), (411, 50196), (423, 48772), (534, 38634), (548, 37647), (564, 36579), (801, 25756), (822, 25098), (846, 24386), (1068, 19317), (1233, 16732), (1602, 12878), (1644, 12549), (1692, 12193), (2466, 8366), (3204, 6439), (4183, 4932)]