17902980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1259}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 37133820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1259, 1422, 1580, 2370, 2518, 2844, 3555, 3777, 4740, 5036, 6295, 7110, 7554, 11331, 12590, 14220, 15108, 18885, 22662, 25180, 37770, 45324, 56655, 75540, 99461, 113310, 198922, 226620, 298383, 397844, 497305, 596766, 895149, 994610, 1193532, 1491915, 1790298, 1989220, 2983830, 3580596, 4475745, 5967660, 8951490, 17902980]

約数ペア:

[(1, 17902980), (2, 8951490), (3, 5967660), (4, 4475745), (5, 3580596), (6, 2983830), (9, 1989220), (10, 1790298), (12, 1491915), (15, 1193532), (18, 994610), (20, 895149), (30, 596766), (36, 497305), (45, 397844), (60, 298383), (79, 226620), (90, 198922), (158, 113310), (180, 99461), (237, 75540), (316, 56655), (395, 45324), (474, 37770), (711, 25180), (790, 22662), (948, 18885), (1185, 15108), (1259, 14220), (1422, 12590), (1580, 11331), (2370, 7554), (2518, 7110), (2844, 6295), (3555, 5036), (3777, 4740)]