7281280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 18017280

約数和(自身を除く): 10736000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 367, 496, 620, 640, 734, 992, 1240, 1468, 1835, 1984, 2480, 2936, 3670, 3968, 4960, 5872, 7340, 9920, 11377, 11744, 14680, 19840, 22754, 23488, 29360, 45508, 46976, 56885, 58720, 91016, 113770, 117440, 182032, 227540, 234880, 364064, 455080, 728128, 910160, 1456256, 1820320, 3640640, 7281280]

約数ペア:

[(1, 7281280), (2, 3640640), (4, 1820320), (5, 1456256), (8, 910160), (10, 728128), (16, 455080), (20, 364064), (31, 234880), (32, 227540), (40, 182032), (62, 117440), (64, 113770), (80, 91016), (124, 58720), (128, 56885), (155, 46976), (160, 45508), (248, 29360), (310, 23488), (320, 22754), (367, 19840), (496, 14680), (620, 11744), (640, 11377), (734, 9920), (992, 7340), (1240, 5872), (1468, 4960), (1835, 3968), (1984, 3670), (2480, 2936)]