80388420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:802

約数の個数: 144

約数和(自身を含む): 269277120

約数和(自身を除く): 188888700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 111, 140, 147, 148, 185, 196, 210, 222, 245, 259, 294, 370, 420, 444, 490, 518, 555, 588, 735, 739, 740, 777, 980, 1036, 1110, 1295, 1470, 1478, 1554, 1813, 2217, 2220, 2590, 2940, 2956, 3108, 3626, 3695, 3885, 4434, 5173, 5180, 5439, 7252, 7390, 7770, 8868, 9065, 10346, 10878, 11085, 14780, 15519, 15540, 18130, 20692, 21756, 22170, 25865, 27195, 27343, 31038, 36211, 36260, 44340, 51730, 54390, 54686, 62076, 72422, 77595, 82029, 103460, 108633, 108780, 109372, 136715, 144844, 155190, 164058, 181055, 191401, 217266, 273430, 310380, 328116, 362110, 382802, 410145, 434532, 543165, 546860, 574203, 724220, 765604, 820290, 957005, 1086330, 1148406, 1339807, 1640580, 1914010, 2172660, 2296812, 2679614, 2871015, 3828020, 4019421, 5359228, 5742030, 6699035, 8038842, 11484060, 13398070, 16077684, 20097105, 26796140, 40194210, 80388420]

約数ペア:

[(1, 80388420), (2, 40194210), (3, 26796140), (4, 20097105), (5, 16077684), (6, 13398070), (7, 11484060), (10, 8038842), (12, 6699035), (14, 5742030), (15, 5359228), (20, 4019421), (21, 3828020), (28, 2871015), (30, 2679614), (35, 2296812), (37, 2172660), (42, 1914010), (49, 1640580), (60, 1339807), (70, 1148406), (74, 1086330), (84, 957005), (98, 820290), (105, 765604), (111, 724220), (140, 574203), (147, 546860), (148, 543165), (185, 434532), (196, 410145), (210, 382802), (222, 362110), (245, 328116), (259, 310380), (294, 273430), (370, 217266), (420, 191401), (444, 181055), (490, 164058), (518, 155190), (555, 144844), (588, 136715), (735, 109372), (739, 108780), (740, 108633), (777, 103460), (980, 82029), (1036, 77595), (1110, 72422), (1295, 62076), (1470, 54686), (1478, 54390), (1554, 51730), (1813, 44340), (2217, 36260), (2220, 36211), (2590, 31038), (2940, 27343), (2956, 27195), (3108, 25865), (3626, 22170), (3695, 21756), (3885, 20692), (4434, 18130), (5173, 15540), (5180, 15519), (5439, 14780), (7252, 11085), (7390, 10878), (7770, 10346), (8868, 9065)]