19216280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15497}}^1$

素因数の和:15539

約数の個数: 32

約数和(自身を含む): 44634240

約数和(自身を除く): 25417960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15497, 30994, 61988, 77485, 123976, 154970, 309940, 480407, 619880, 960814, 1921628, 2402035, 3843256, 4804070, 9608140, 19216280]

約数ペア:

[(1, 19216280), (2, 9608140), (4, 4804070), (5, 3843256), (8, 2402035), (10, 1921628), (20, 960814), (31, 619880), (40, 480407), (62, 309940), (124, 154970), (155, 123976), (248, 77485), (310, 61988), (620, 30994), (1240, 15497)]