9977660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 144

約数和(自身を含む): 28600320

約数和(自身を除く): 18622660

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 31, 35, 38, 44, 55, 62, 70, 76, 77, 95, 110, 121, 124, 133, 140, 154, 155, 190, 209, 217, 220, 242, 266, 308, 310, 341, 380, 385, 418, 434, 484, 532, 589, 605, 620, 665, 682, 770, 836, 847, 868, 1045, 1085, 1178, 1210, 1330, 1364, 1463, 1540, 1694, 1705, 2090, 2170, 2299, 2356, 2387, 2420, 2660, 2926, 2945, 3388, 3410, 3751, 4123, 4180, 4235, 4340, 4598, 4774, 5852, 5890, 6479, 6820, 7315, 7502, 8246, 8470, 9196, 9548, 11495, 11780, 11935, 12958, 14630, 15004, 16093, 16492, 16940, 18755, 20615, 22990, 23870, 25916, 26257, 29260, 32186, 32395, 37510, 41230, 45353, 45980, 47740, 52514, 64372, 64790, 71269, 75020, 80465, 82460, 90706, 105028, 129580, 131285, 142538, 160930, 181412, 226765, 262570, 285076, 321860, 356345, 453530, 498883, 525140, 712690, 907060, 997766, 1425380, 1995532, 2494415, 4988830, 9977660]

約数ペア:

[(1, 9977660), (2, 4988830), (4, 2494415), (5, 1995532), (7, 1425380), (10, 997766), (11, 907060), (14, 712690), (19, 525140), (20, 498883), (22, 453530), (28, 356345), (31, 321860), (35, 285076), (38, 262570), (44, 226765), (55, 181412), (62, 160930), (70, 142538), (76, 131285), (77, 129580), (95, 105028), (110, 90706), (121, 82460), (124, 80465), (133, 75020), (140, 71269), (154, 64790), (155, 64372), (190, 52514), (209, 47740), (217, 45980), (220, 45353), (242, 41230), (266, 37510), (308, 32395), (310, 32186), (341, 29260), (380, 26257), (385, 25916), (418, 23870), (434, 22990), (484, 20615), (532, 18755), (589, 16940), (605, 16492), (620, 16093), (665, 15004), (682, 14630), (770, 12958), (836, 11935), (847, 11780), (868, 11495), (1045, 9548), (1085, 9196), (1178, 8470), (1210, 8246), (1330, 7502), (1364, 7315), (1463, 6820), (1540, 6479), (1694, 5890), (1705, 5852), (2090, 4774), (2170, 4598), (2299, 4340), (2356, 4235), (2387, 4180), (2420, 4123), (2660, 3751), (2926, 3410), (2945, 3388)]