28130080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1453}}^1$

素因数の和:1490

約数の個数: 72

約数和(自身を含む): 73098396

約数和(自身を除く): 44968316

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1453, 1760, 1936, 2420, 2906, 3872, 4840, 5812, 7265, 9680, 11624, 14530, 15983, 19360, 23248, 29060, 31966, 46496, 58120, 63932, 79915, 116240, 127864, 159830, 175813, 232480, 255728, 319660, 351626, 511456, 639320, 703252, 879065, 1278640, 1406504, 1758130, 2557280, 2813008, 3516260, 5626016, 7032520, 14065040, 28130080]

約数ペア:

[(1, 28130080), (2, 14065040), (4, 7032520), (5, 5626016), (8, 3516260), (10, 2813008), (11, 2557280), (16, 1758130), (20, 1406504), (22, 1278640), (32, 879065), (40, 703252), (44, 639320), (55, 511456), (80, 351626), (88, 319660), (110, 255728), (121, 232480), (160, 175813), (176, 159830), (220, 127864), (242, 116240), (352, 79915), (440, 63932), (484, 58120), (605, 46496), (880, 31966), (968, 29060), (1210, 23248), (1453, 19360), (1760, 15983), (1936, 14530), (2420, 11624), (2906, 9680), (3872, 7265), (4840, 5812)]