1978749840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{265961}}^1$

素因数の和:266008

約数の個数: 80

約数和(自身を含む): 6332023296

約数和(自身を除く): 4353273456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 265961, 531922, 797883, 1063844, 1329805, 1595766, 2127688, 2659610, 3191532, 3989415, 4255376, 5319220, 6383064, 7978830, 8244791, 10638440, 12766128, 15957660, 16489582, 21276880, 24734373, 31915320, 32979164, 41223955, 49468746, 63830640, 65958328, 82447910, 98937492, 123671865, 131916656, 164895820, 197874984, 247343730, 329791640, 395749968, 494687460, 659583280, 989374920, 1978749840]

約数ペア:

[(1, 1978749840), (2, 989374920), (3, 659583280), (4, 494687460), (5, 395749968), (6, 329791640), (8, 247343730), (10, 197874984), (12, 164895820), (15, 131916656), (16, 123671865), (20, 98937492), (24, 82447910), (30, 65958328), (31, 63830640), (40, 49468746), (48, 41223955), (60, 32979164), (62, 31915320), (80, 24734373), (93, 21276880), (120, 16489582), (124, 15957660), (155, 12766128), (186, 10638440), (240, 8244791), (248, 7978830), (310, 6383064), (372, 5319220), (465, 4255376), (496, 3989415), (620, 3191532), (744, 2659610), (930, 2127688), (1240, 1595766), (1488, 1329805), (1860, 1063844), (2480, 797883), (3720, 531922), (7440, 265961)]