7871940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{433}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 24170328

約数和(自身を除く): 16298388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 433, 505, 606, 866, 909, 1010, 1212, 1299, 1515, 1732, 1818, 2020, 2165, 2598, 3030, 3636, 3897, 4330, 4545, 5196, 6060, 6495, 7794, 8660, 9090, 12990, 15588, 18180, 19485, 25980, 38970, 43733, 77940, 87466, 131199, 174932, 218665, 262398, 393597, 437330, 524796, 655995, 787194, 874660, 1311990, 1574388, 1967985, 2623980, 3935970, 7871940]

約数ペア:

[(1, 7871940), (2, 3935970), (3, 2623980), (4, 1967985), (5, 1574388), (6, 1311990), (9, 874660), (10, 787194), (12, 655995), (15, 524796), (18, 437330), (20, 393597), (30, 262398), (36, 218665), (45, 174932), (60, 131199), (90, 87466), (101, 77940), (180, 43733), (202, 38970), (303, 25980), (404, 19485), (433, 18180), (505, 15588), (606, 12990), (866, 9090), (909, 8660), (1010, 7794), (1212, 6495), (1299, 6060), (1515, 5196), (1732, 4545), (1818, 4330), (2020, 3897), (2165, 3636), (2598, 3030)]