128258284

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 312560640

約数和(自身を除く): 184302356

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 31, 38, 44, 49, 62, 76, 77, 98, 101, 124, 133, 154, 196, 202, 209, 217, 266, 308, 341, 404, 418, 434, 532, 539, 589, 682, 707, 836, 868, 931, 1078, 1111, 1178, 1364, 1414, 1463, 1519, 1862, 1919, 2156, 2222, 2356, 2387, 2828, 2926, 3038, 3131, 3724, 3838, 4123, 4444, 4774, 4949, 5852, 6076, 6262, 6479, 7676, 7777, 8246, 9548, 9898, 10241, 12524, 12958, 13433, 15554, 16492, 16709, 19796, 20482, 21109, 21917, 25916, 26866, 28861, 31108, 33418, 34441, 40964, 42218, 43834, 45353, 53732, 54439, 57722, 59489, 66836, 68882, 84436, 87668, 90706, 94031, 108878, 115444, 118978, 137764, 147763, 153419, 181412, 188062, 217756, 237956, 241087, 295526, 306838, 317471, 376124, 416423, 482174, 591052, 613676, 634942, 654379, 832846, 964348, 1034341, 1269884, 1308758, 1665692, 1687609, 2068682, 2617516, 2914961, 3375218, 4137364, 4580653, 5829922, 6750436, 9161306, 11659844, 18322612, 32064571, 64129142, 128258284]

約数ペア:

[(1, 128258284), (2, 64129142), (4, 32064571), (7, 18322612), (11, 11659844), (14, 9161306), (19, 6750436), (22, 5829922), (28, 4580653), (31, 4137364), (38, 3375218), (44, 2914961), (49, 2617516), (62, 2068682), (76, 1687609), (77, 1665692), (98, 1308758), (101, 1269884), (124, 1034341), (133, 964348), (154, 832846), (196, 654379), (202, 634942), (209, 613676), (217, 591052), (266, 482174), (308, 416423), (341, 376124), (404, 317471), (418, 306838), (434, 295526), (532, 241087), (539, 237956), (589, 217756), (682, 188062), (707, 181412), (836, 153419), (868, 147763), (931, 137764), (1078, 118978), (1111, 115444), (1178, 108878), (1364, 94031), (1414, 90706), (1463, 87668), (1519, 84436), (1862, 68882), (1919, 66836), (2156, 59489), (2222, 57722), (2356, 54439), (2387, 53732), (2828, 45353), (2926, 43834), (3038, 42218), (3131, 40964), (3724, 34441), (3838, 33418), (4123, 31108), (4444, 28861), (4774, 26866), (4949, 25916), (5852, 21917), (6076, 21109), (6262, 20482), (6479, 19796), (7676, 16709), (7777, 16492), (8246, 15554), (9548, 13433), (9898, 12958), (10241, 12524)]