1804906180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:567

約数の個数: 216

約数和(自身を含む): 5012921088

約数和(自身を除く): 3208014908

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 121, 124, 140, 154, 155, 196, 217, 220, 242, 245, 308, 310, 341, 385, 434, 484, 490, 491, 539, 605, 620, 682, 770, 847, 868, 980, 982, 1078, 1085, 1210, 1364, 1519, 1540, 1694, 1705, 1964, 2156, 2170, 2387, 2420, 2455, 2695, 3038, 3388, 3410, 3437, 3751, 4235, 4340, 4774, 4910, 5390, 5401, 5929, 6076, 6820, 6874, 7502, 7595, 8470, 9548, 9820, 10780, 10802, 11858, 11935, 13748, 15004, 15190, 15221, 16709, 16940, 17185, 18755, 21604, 23716, 23870, 24059, 26257, 27005, 29645, 30380, 30442, 33418, 34370, 37510, 37807, 47740, 48118, 52514, 54010, 59290, 59411, 60884, 66836, 68740, 75020, 75614, 76105, 83545, 96236, 105028, 106547, 108020, 118580, 118822, 120295, 131285, 151228, 152210, 167090, 167431, 183799, 189035, 213094, 237644, 240590, 262570, 264649, 297055, 304420, 334180, 334862, 367598, 378070, 415877, 426188, 481180, 525140, 529298, 532735, 594110, 669724, 735196, 745829, 756140, 831754, 837155, 918995, 1058596, 1065470, 1172017, 1188220, 1323245, 1491658, 1663508, 1674310, 1837990, 1841741, 2079385, 2130940, 2344034, 2646490, 2911139, 2983316, 3348620, 3675980, 3683482, 3729145, 4158770, 4688068, 5292980, 5822278, 5860085, 7366964, 7458290, 8204119, 8317540, 9208705, 11644556, 11720170, 12892187, 14555695, 14916580, 16408238, 18417410, 23440340, 25784374, 29111390, 32816476, 36834820, 41020595, 51568748, 58222780, 64460935, 82041190, 90245309, 128921870, 164082380, 180490618, 257843740, 360981236, 451226545, 902453090, 1804906180]

約数ペア:

[(1, 1804906180), (2, 902453090), (4, 451226545), (5, 360981236), (7, 257843740), (10, 180490618), (11, 164082380), (14, 128921870), (20, 90245309), (22, 82041190), (28, 64460935), (31, 58222780), (35, 51568748), (44, 41020595), (49, 36834820), (55, 32816476), (62, 29111390), (70, 25784374), (77, 23440340), (98, 18417410), (110, 16408238), (121, 14916580), (124, 14555695), (140, 12892187), (154, 11720170), (155, 11644556), (196, 9208705), (217, 8317540), (220, 8204119), (242, 7458290), (245, 7366964), (308, 5860085), (310, 5822278), (341, 5292980), (385, 4688068), (434, 4158770), (484, 3729145), (490, 3683482), (491, 3675980), (539, 3348620), (605, 2983316), (620, 2911139), (682, 2646490), (770, 2344034), (847, 2130940), (868, 2079385), (980, 1841741), (982, 1837990), (1078, 1674310), (1085, 1663508), (1210, 1491658), (1364, 1323245), (1519, 1188220), (1540, 1172017), (1694, 1065470), (1705, 1058596), (1964, 918995), (2156, 837155), (2170, 831754), (2387, 756140), (2420, 745829), (2455, 735196), (2695, 669724), (3038, 594110), (3388, 532735), (3410, 529298), (3437, 525140), (3751, 481180), (4235, 426188), (4340, 415877), (4774, 378070), (4910, 367598), (5390, 334862), (5401, 334180), (5929, 304420), (6076, 297055), (6820, 264649), (6874, 262570), (7502, 240590), (7595, 237644), (8470, 213094), (9548, 189035), (9820, 183799), (10780, 167431), (10802, 167090), (11858, 152210), (11935, 151228), (13748, 131285), (15004, 120295), (15190, 118822), (15221, 118580), (16709, 108020), (16940, 106547), (17185, 105028), (18755, 96236), (21604, 83545), (23716, 76105), (23870, 75614), (24059, 75020), (26257, 68740), (27005, 66836), (29645, 60884), (30380, 59411), (30442, 59290), (33418, 54010), (34370, 52514), (37510, 48118), (37807, 47740)]