31440780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{24953}}^1$

素因数の和:24975

約数の個数: 72

約数和(自身を含む): 108999072

約数和(自身を除く): 77558292

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, 24953, 49906, 74859, 99812, 124765, 149718, 174671, 224577, 249530, 299436, 349342, 374295, 449154, 499060, 524013, 698684, 748590, 873355, 898308, 1048026, 1122885, 1497180, 1572039, 1746710, 2096052, 2245770, 2620065, 3144078, 3493420, 4491540, 5240130, 6288156, 7860195, 10480260, 15720390, 31440780]

約数ペア:

[(1, 31440780), (2, 15720390), (3, 10480260), (4, 7860195), (5, 6288156), (6, 5240130), (7, 4491540), (9, 3493420), (10, 3144078), (12, 2620065), (14, 2245770), (15, 2096052), (18, 1746710), (20, 1572039), (21, 1497180), (28, 1122885), (30, 1048026), (35, 898308), (36, 873355), (42, 748590), (45, 698684), (60, 524013), (63, 499060), (70, 449154), (84, 374295), (90, 349342), (105, 299436), (126, 249530), (140, 224577), (180, 174671), (210, 149718), (252, 124765), (315, 99812), (420, 74859), (630, 49906), (1260, 24953)]