18230480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7351}}^1$

素因数の和:7395

約数の個数: 40

約数和(自身を含む): 43759104

約数和(自身を除く): 25528624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7351, 14702, 29404, 36755, 58808, 73510, 117616, 147020, 227881, 294040, 455762, 588080, 911524, 1139405, 1823048, 2278810, 3646096, 4557620, 9115240, 18230480]

約数ペア:

[(1, 18230480), (2, 9115240), (4, 4557620), (5, 3646096), (8, 2278810), (10, 1823048), (16, 1139405), (20, 911524), (31, 588080), (40, 455762), (62, 294040), (80, 227881), (124, 147020), (155, 117616), (248, 73510), (310, 58808), (496, 36755), (620, 29404), (1240, 14702), (2480, 7351)]