28689880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1420

約数の個数: 64

約数和(自身を含む): 70606080

約数和(自身を除く): 41916200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 1054, 1240, 1361, 2108, 2635, 2722, 4216, 5270, 5444, 6805, 10540, 10888, 13610, 21080, 23137, 27220, 42191, 46274, 54440, 84382, 92548, 115685, 168764, 185096, 210955, 231370, 337528, 421910, 462740, 717247, 843820, 925480, 1434494, 1687640, 2868988, 3586235, 5737976, 7172470, 14344940, 28689880]

約数ペア:

[(1, 28689880), (2, 14344940), (4, 7172470), (5, 5737976), (8, 3586235), (10, 2868988), (17, 1687640), (20, 1434494), (31, 925480), (34, 843820), (40, 717247), (62, 462740), (68, 421910), (85, 337528), (124, 231370), (136, 210955), (155, 185096), (170, 168764), (248, 115685), (310, 92548), (340, 84382), (527, 54440), (620, 46274), (680, 42191), (1054, 27220), (1240, 23137), (1361, 21080), (2108, 13610), (2635, 10888), (2722, 10540), (4216, 6805), (5270, 5444)]