20708000

素因数分解:

$2^5\times 5^3\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 32127328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 125, 155, 160, 167, 200, 248, 250, 310, 334, 400, 496, 500, 620, 668, 775, 800, 835, 992, 1000, 1240, 1336, 1550, 1670, 2000, 2480, 2672, 3100, 3340, 3875, 4000, 4175, 4960, 5177, 5344, 6200, 6680, 7750, 8350, 10354, 12400, 13360, 15500, 16700, 20708, 20875, 24800, 25885, 26720, 31000, 33400, 41416, 41750, 51770, 62000, 66800, 82832, 83500, 103540, 124000, 129425, 133600, 165664, 167000, 207080, 258850, 334000, 414160, 517700, 647125, 668000, 828320, 1035400, 1294250, 2070800, 2588500, 4141600, 5177000, 10354000, 20708000]

約数ペア:

[(1, 20708000), (2, 10354000), (4, 5177000), (5, 4141600), (8, 2588500), (10, 2070800), (16, 1294250), (20, 1035400), (25, 828320), (31, 668000), (32, 647125), (40, 517700), (50, 414160), (62, 334000), (80, 258850), (100, 207080), (124, 167000), (125, 165664), (155, 133600), (160, 129425), (167, 124000), (200, 103540), (248, 83500), (250, 82832), (310, 66800), (334, 62000), (400, 51770), (496, 41750), (500, 41416), (620, 33400), (668, 31000), (775, 26720), (800, 25885), (835, 24800), (992, 20875), (1000, 20708), (1240, 16700), (1336, 15500), (1550, 13360), (1670, 12400), (2000, 10354), (2480, 8350), (2672, 7750), (3100, 6680), (3340, 6200), (3875, 5344), (4000, 5177), (4175, 4960)]