28415840

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 73592064

約数和(自身を除く): 45176224

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 155, 160, 170, 248, 272, 310, 337, 340, 496, 527, 544, 620, 674, 680, 992, 1054, 1240, 1348, 1360, 1685, 2108, 2480, 2635, 2696, 2720, 3370, 4216, 4960, 5270, 5392, 5729, 6740, 8432, 10447, 10540, 10784, 11458, 13480, 16864, 20894, 21080, 22916, 26960, 28645, 41788, 42160, 45832, 52235, 53920, 57290, 83576, 84320, 91664, 104470, 114580, 167152, 177599, 183328, 208940, 229160, 334304, 355198, 417880, 458320, 710396, 835760, 887995, 916640, 1420792, 1671520, 1775990, 2841584, 3551980, 5683168, 7103960, 14207920, 28415840]

約数ペア:

[(1, 28415840), (2, 14207920), (4, 7103960), (5, 5683168), (8, 3551980), (10, 2841584), (16, 1775990), (17, 1671520), (20, 1420792), (31, 916640), (32, 887995), (34, 835760), (40, 710396), (62, 458320), (68, 417880), (80, 355198), (85, 334304), (124, 229160), (136, 208940), (155, 183328), (160, 177599), (170, 167152), (248, 114580), (272, 104470), (310, 91664), (337, 84320), (340, 83576), (496, 57290), (527, 53920), (544, 52235), (620, 45832), (674, 42160), (680, 41788), (992, 28645), (1054, 26960), (1240, 22916), (1348, 21080), (1360, 20894), (1685, 16864), (2108, 13480), (2480, 11458), (2635, 10784), (2696, 10540), (2720, 10447), (3370, 8432), (4216, 6740), (4960, 5729), (5270, 5392)]