687507660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{545641}}^1$

素因数の和:545663

約数の個数: 72

約数和(自身を含む): 2383364256

約数和(自身を除く): 1695856596

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 545641, 1091282, 1636923, 2182564, 2728205, 3273846, 3819487, 4910769, 5456410, 6547692, 7638974, 8184615, 9821538, 10912820, 11458461, 15277948, 16369230, 19097435, 19643076, 22916922, 24553845, 32738460, 34375383, 38194870, 45833844, 49107690, 57292305, 68750766, 76389740, 98215380, 114584610, 137501532, 171876915, 229169220, 343753830, 687507660]

約数ペア:

[(1, 687507660), (2, 343753830), (3, 229169220), (4, 171876915), (5, 137501532), (6, 114584610), (7, 98215380), (9, 76389740), (10, 68750766), (12, 57292305), (14, 49107690), (15, 45833844), (18, 38194870), (20, 34375383), (21, 32738460), (28, 24553845), (30, 22916922), (35, 19643076), (36, 19097435), (42, 16369230), (45, 15277948), (60, 11458461), (63, 10912820), (70, 9821538), (84, 8184615), (90, 7638974), (105, 6547692), (126, 5456410), (140, 4910769), (180, 3819487), (210, 3273846), (252, 2728205), (315, 2182564), (420, 1636923), (630, 1091282), (1260, 545641)]