18215600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:175

約数の個数: 120

約数和(自身を含む): 49080192

約数和(自身を除く): 30864592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 113, 124, 130, 155, 200, 208, 226, 248, 260, 310, 325, 400, 403, 452, 496, 520, 565, 620, 650, 775, 806, 904, 1040, 1130, 1240, 1300, 1469, 1550, 1612, 1808, 2015, 2260, 2480, 2600, 2825, 2938, 3100, 3224, 3503, 4030, 4520, 5200, 5650, 5876, 6200, 6448, 7006, 7345, 8060, 9040, 10075, 11300, 11752, 12400, 14012, 14690, 16120, 17515, 20150, 22600, 23504, 28024, 29380, 32240, 35030, 36725, 40300, 45200, 45539, 56048, 58760, 70060, 73450, 80600, 87575, 91078, 117520, 140120, 146900, 161200, 175150, 182156, 227695, 280240, 293800, 350300, 364312, 455390, 587600, 700600, 728624, 910780, 1138475, 1401200, 1821560, 2276950, 3643120, 4553900, 9107800, 18215600]

約数ペア:

[(1, 18215600), (2, 9107800), (4, 4553900), (5, 3643120), (8, 2276950), (10, 1821560), (13, 1401200), (16, 1138475), (20, 910780), (25, 728624), (26, 700600), (31, 587600), (40, 455390), (50, 364312), (52, 350300), (62, 293800), (65, 280240), (80, 227695), (100, 182156), (104, 175150), (113, 161200), (124, 146900), (130, 140120), (155, 117520), (200, 91078), (208, 87575), (226, 80600), (248, 73450), (260, 70060), (310, 58760), (325, 56048), (400, 45539), (403, 45200), (452, 40300), (496, 36725), (520, 35030), (565, 32240), (620, 29380), (650, 28024), (775, 23504), (806, 22600), (904, 20150), (1040, 17515), (1130, 16120), (1240, 14690), (1300, 14012), (1469, 12400), (1550, 11752), (1612, 11300), (1808, 10075), (2015, 9040), (2260, 8060), (2480, 7345), (2600, 7006), (2825, 6448), (2938, 6200), (3100, 5876), (3224, 5650), (3503, 5200), (4030, 4520)]