20159200

素因数分解:

$2^5\times 5^2\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:356

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 29712608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 113, 160, 200, 223, 226, 400, 446, 452, 565, 800, 892, 904, 1115, 1130, 1784, 1808, 2230, 2260, 2825, 3568, 3616, 4460, 4520, 5575, 5650, 7136, 8920, 9040, 11150, 11300, 17840, 18080, 22300, 22600, 25199, 35680, 44600, 45200, 50398, 89200, 90400, 100796, 125995, 178400, 201592, 251990, 403184, 503980, 629975, 806368, 1007960, 1259950, 2015920, 2519900, 4031840, 5039800, 10079600, 20159200]

約数ペア:

[(1, 20159200), (2, 10079600), (4, 5039800), (5, 4031840), (8, 2519900), (10, 2015920), (16, 1259950), (20, 1007960), (25, 806368), (32, 629975), (40, 503980), (50, 403184), (80, 251990), (100, 201592), (113, 178400), (160, 125995), (200, 100796), (223, 90400), (226, 89200), (400, 50398), (446, 45200), (452, 44600), (565, 35680), (800, 25199), (892, 22600), (904, 22300), (1115, 18080), (1130, 17840), (1784, 11300), (1808, 11150), (2230, 9040), (2260, 8920), (2825, 7136), (3568, 5650), (3616, 5575), (4460, 4520)]