21718600

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^2\times {\mathrm{113}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 52638930

約数和(自身を除く): 30920330

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 113, 124, 155, 200, 226, 248, 310, 452, 565, 620, 775, 904, 961, 1130, 1240, 1550, 1922, 2260, 2825, 3100, 3503, 3844, 4520, 4805, 5650, 6200, 7006, 7688, 9610, 11300, 14012, 17515, 19220, 22600, 24025, 28024, 35030, 38440, 48050, 70060, 87575, 96100, 108593, 140120, 175150, 192200, 217186, 350300, 434372, 542965, 700600, 868744, 1085930, 2171860, 2714825, 4343720, 5429650, 10859300, 21718600]

約数ペア:

[(1, 21718600), (2, 10859300), (4, 5429650), (5, 4343720), (8, 2714825), (10, 2171860), (20, 1085930), (25, 868744), (31, 700600), (40, 542965), (50, 434372), (62, 350300), (100, 217186), (113, 192200), (124, 175150), (155, 140120), (200, 108593), (226, 96100), (248, 87575), (310, 70060), (452, 48050), (565, 38440), (620, 35030), (775, 28024), (904, 24025), (961, 22600), (1130, 19220), (1240, 17515), (1550, 14012), (1922, 11300), (2260, 9610), (2825, 7688), (3100, 7006), (3503, 6200), (3844, 5650), (4520, 4805)]