2017795540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^2\times {\mathrm{271}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 4392847872

約数和(自身を除く): 2375052332

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 178, 188, 235, 271, 356, 445, 470, 542, 890, 940, 1084, 1355, 1780, 2710, 4183, 5420, 7921, 8366, 12737, 15842, 16732, 20915, 24119, 25474, 31684, 39605, 41830, 48238, 50948, 63685, 79210, 83660, 96476, 120595, 127370, 158420, 241190, 254740, 372287, 482380, 744574, 1133593, 1489148, 1861435, 2146591, 2267186, 3722870, 4293182, 4534372, 5667965, 7445740, 8586364, 10732955, 11335930, 21465910, 22671860, 42931820, 100889777, 201779554, 403559108, 504448885, 1008897770, 2017795540]

約数ペア:

[(1, 2017795540), (2, 1008897770), (4, 504448885), (5, 403559108), (10, 201779554), (20, 100889777), (47, 42931820), (89, 22671860), (94, 21465910), (178, 11335930), (188, 10732955), (235, 8586364), (271, 7445740), (356, 5667965), (445, 4534372), (470, 4293182), (542, 3722870), (890, 2267186), (940, 2146591), (1084, 1861435), (1355, 1489148), (1780, 1133593), (2710, 744574), (4183, 482380), (5420, 372287), (7921, 254740), (8366, 241190), (12737, 158420), (15842, 127370), (16732, 120595), (20915, 96476), (24119, 83660), (25474, 79210), (31684, 63685), (39605, 50948), (41830, 48238)]