778889680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{571}}^1$

素因数の和:677

約数の個数: 120

約数和(自身を含む): 1959740640

約数和(自身を除く): 1180850960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 59, 68, 80, 85, 118, 136, 170, 236, 272, 289, 295, 340, 472, 571, 578, 590, 680, 944, 1003, 1142, 1156, 1180, 1360, 1445, 2006, 2284, 2312, 2360, 2855, 2890, 4012, 4568, 4624, 4720, 5015, 5710, 5780, 8024, 9136, 9707, 10030, 11420, 11560, 16048, 17051, 19414, 20060, 22840, 23120, 33689, 34102, 38828, 40120, 45680, 48535, 67378, 68204, 77656, 80240, 85255, 97070, 134756, 136408, 155312, 165019, 168445, 170510, 194140, 269512, 272816, 330038, 336890, 341020, 388280, 539024, 572713, 660076, 673780, 682040, 776560, 825095, 1145426, 1320152, 1347560, 1364080, 1650190, 2290852, 2640304, 2695120, 2863565, 3300380, 4581704, 5727130, 6600760, 9163408, 9736121, 11454260, 13201520, 19472242, 22908520, 38944484, 45817040, 48680605, 77888968, 97361210, 155777936, 194722420, 389444840, 778889680]

約数ペア:

[(1, 778889680), (2, 389444840), (4, 194722420), (5, 155777936), (8, 97361210), (10, 77888968), (16, 48680605), (17, 45817040), (20, 38944484), (34, 22908520), (40, 19472242), (59, 13201520), (68, 11454260), (80, 9736121), (85, 9163408), (118, 6600760), (136, 5727130), (170, 4581704), (236, 3300380), (272, 2863565), (289, 2695120), (295, 2640304), (340, 2290852), (472, 1650190), (571, 1364080), (578, 1347560), (590, 1320152), (680, 1145426), (944, 825095), (1003, 776560), (1142, 682040), (1156, 673780), (1180, 660076), (1360, 572713), (1445, 539024), (2006, 388280), (2284, 341020), (2312, 336890), (2360, 330038), (2855, 272816), (2890, 269512), (4012, 194140), (4568, 170510), (4624, 168445), (4720, 165019), (5015, 155312), (5710, 136408), (5780, 134756), (8024, 97070), (9136, 85255), (9707, 80240), (10030, 77656), (11420, 68204), (11560, 67378), (16048, 48535), (17051, 45680), (19414, 40120), (20060, 38828), (22840, 34102), (23120, 33689)]