18501910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{619}}^1$

素因数の和:701

約数の個数: 48

約数和(自身を含む): 39439440

約数和(自身を除く): 20937530

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 619, 854, 1238, 2135, 2989, 3095, 4270, 4333, 5978, 6190, 8666, 14945, 21665, 29890, 30331, 37759, 43330, 60662, 75518, 151655, 188795, 264313, 303310, 377590, 528626, 1321565, 1850191, 2643130, 3700382, 9250955, 18501910]

約数ペア:

[(1, 18501910), (2, 9250955), (5, 3700382), (7, 2643130), (10, 1850191), (14, 1321565), (35, 528626), (49, 377590), (61, 303310), (70, 264313), (98, 188795), (122, 151655), (245, 75518), (305, 60662), (427, 43330), (490, 37759), (610, 30331), (619, 29890), (854, 21665), (1238, 14945), (2135, 8666), (2989, 6190), (3095, 5978), (4270, 4333)]