20949180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1659

約数の個数: 96

約数和(自身を含む): 69242880

約数和(自身を除く): 48293700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1609, 1860, 2170, 2604, 3218, 3255, 4340, 4827, 6436, 6510, 8045, 9654, 11263, 13020, 16090, 19308, 22526, 24135, 32180, 33789, 45052, 48270, 49879, 56315, 67578, 96540, 99758, 112630, 135156, 149637, 168945, 199516, 225260, 249395, 299274, 337890, 349153, 498790, 598548, 675780, 698306, 748185, 997580, 1047459, 1396612, 1496370, 1745765, 2094918, 2992740, 3491530, 4189836, 5237295, 6983060, 10474590, 20949180]

約数ペア:

[(1, 20949180), (2, 10474590), (3, 6983060), (4, 5237295), (5, 4189836), (6, 3491530), (7, 2992740), (10, 2094918), (12, 1745765), (14, 1496370), (15, 1396612), (20, 1047459), (21, 997580), (28, 748185), (30, 698306), (31, 675780), (35, 598548), (42, 498790), (60, 349153), (62, 337890), (70, 299274), (84, 249395), (93, 225260), (105, 199516), (124, 168945), (140, 149637), (155, 135156), (186, 112630), (210, 99758), (217, 96540), (310, 67578), (372, 56315), (420, 49879), (434, 48270), (465, 45052), (620, 33789), (651, 32180), (868, 24135), (930, 22526), (1085, 19308), (1302, 16090), (1609, 13020), (1860, 11263), (2170, 9654), (2604, 8045), (3218, 6510), (3255, 6436), (4340, 4827)]