240517840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1\times {\mathrm{331}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 580962816

約数和(自身を除く): 340444976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 293, 310, 331, 496, 586, 620, 662, 1172, 1240, 1324, 1465, 1655, 2344, 2480, 2648, 2930, 3310, 4688, 5296, 5860, 6620, 9083, 10261, 11720, 13240, 18166, 20522, 23440, 26480, 36332, 41044, 45415, 51305, 72664, 82088, 90830, 96983, 102610, 145328, 164176, 181660, 193966, 205220, 363320, 387932, 410440, 484915, 726640, 775864, 820880, 969830, 1551728, 1939660, 3006473, 3879320, 6012946, 7758640, 12025892, 15032365, 24051784, 30064730, 48103568, 60129460, 120258920, 240517840]

約数ペア:

[(1, 240517840), (2, 120258920), (4, 60129460), (5, 48103568), (8, 30064730), (10, 24051784), (16, 15032365), (20, 12025892), (31, 7758640), (40, 6012946), (62, 3879320), (80, 3006473), (124, 1939660), (155, 1551728), (248, 969830), (293, 820880), (310, 775864), (331, 726640), (496, 484915), (586, 410440), (620, 387932), (662, 363320), (1172, 205220), (1240, 193966), (1324, 181660), (1465, 164176), (1655, 145328), (2344, 102610), (2480, 96983), (2648, 90830), (2930, 82088), (3310, 72664), (4688, 51305), (5296, 45415), (5860, 41044), (6620, 36332), (9083, 26480), (10261, 23440), (11720, 20522), (13240, 18166)]