20922580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 33509420

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 59, 68, 70, 85, 118, 119, 140, 149, 170, 236, 238, 295, 298, 340, 413, 476, 590, 595, 596, 745, 826, 1003, 1043, 1180, 1190, 1490, 1652, 2006, 2065, 2086, 2380, 2533, 2980, 4012, 4130, 4172, 5015, 5066, 5215, 7021, 8260, 8791, 10030, 10132, 10430, 12665, 14042, 17582, 17731, 20060, 20860, 25330, 28084, 35105, 35164, 35462, 43955, 50660, 61537, 70210, 70924, 87910, 88655, 123074, 140420, 149447, 175820, 177310, 246148, 298894, 307685, 354620, 597788, 615370, 747235, 1046129, 1230740, 1494470, 2092258, 2988940, 4184516, 5230645, 10461290, 20922580]

約数ペア:

[(1, 20922580), (2, 10461290), (4, 5230645), (5, 4184516), (7, 2988940), (10, 2092258), (14, 1494470), (17, 1230740), (20, 1046129), (28, 747235), (34, 615370), (35, 597788), (59, 354620), (68, 307685), (70, 298894), (85, 246148), (118, 177310), (119, 175820), (140, 149447), (149, 140420), (170, 123074), (236, 88655), (238, 87910), (295, 70924), (298, 70210), (340, 61537), (413, 50660), (476, 43955), (590, 35462), (595, 35164), (596, 35105), (745, 28084), (826, 25330), (1003, 20860), (1043, 20060), (1180, 17731), (1190, 17582), (1490, 14042), (1652, 12665), (2006, 10430), (2065, 10132), (2086, 10030), (2380, 8791), (2533, 8260), (2980, 7021), (4012, 5215), (4130, 5066), (4172, 5015)]