28279188

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{383}}^1$

素因数の和:693

約数の個数: 72

約数和(自身を含む): 82188288

約数和(自身を除く): 53909100

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 293, 383, 586, 766, 879, 1149, 1172, 1532, 1758, 2051, 2298, 2637, 2681, 3447, 3516, 4102, 4596, 5274, 5362, 6153, 6894, 8043, 8204, 10548, 10724, 12306, 13788, 16086, 18459, 24129, 24612, 32172, 36918, 48258, 73836, 96516, 112219, 224438, 336657, 448876, 673314, 785533, 1009971, 1346628, 1571066, 2019942, 2356599, 3142132, 4039884, 4713198, 7069797, 9426396, 14139594, 28279188]

約数ペア:

[(1, 28279188), (2, 14139594), (3, 9426396), (4, 7069797), (6, 4713198), (7, 4039884), (9, 3142132), (12, 2356599), (14, 2019942), (18, 1571066), (21, 1346628), (28, 1009971), (36, 785533), (42, 673314), (63, 448876), (84, 336657), (126, 224438), (252, 112219), (293, 96516), (383, 73836), (586, 48258), (766, 36918), (879, 32172), (1149, 24612), (1172, 24129), (1532, 18459), (1758, 16086), (2051, 13788), (2298, 12306), (2637, 10724), (2681, 10548), (3447, 8204), (3516, 8043), (4102, 6894), (4596, 6153), (5274, 5362)]