72812800

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:424

約数の個数: 108

約数和(自身を含む): 186543616

約数和(自身を除く): 113730816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 367, 400, 496, 620, 640, 734, 775, 800, 992, 1240, 1280, 1468, 1550, 1600, 1835, 1984, 2480, 2936, 3100, 3200, 3670, 3968, 4960, 5872, 6200, 6400, 7340, 7936, 9175, 9920, 11377, 11744, 12400, 14680, 18350, 19840, 22754, 23488, 24800, 29360, 36700, 39680, 45508, 46976, 49600, 56885, 58720, 73400, 91016, 93952, 99200, 113770, 117440, 146800, 182032, 198400, 227540, 234880, 284425, 293600, 364064, 455080, 469760, 568850, 587200, 728128, 910160, 1137700, 1174400, 1456256, 1820320, 2275400, 2348800, 2912512, 3640640, 4550800, 7281280, 9101600, 14562560, 18203200, 36406400, 72812800]

約数ペア:

[(1, 72812800), (2, 36406400), (4, 18203200), (5, 14562560), (8, 9101600), (10, 7281280), (16, 4550800), (20, 3640640), (25, 2912512), (31, 2348800), (32, 2275400), (40, 1820320), (50, 1456256), (62, 1174400), (64, 1137700), (80, 910160), (100, 728128), (124, 587200), (128, 568850), (155, 469760), (160, 455080), (200, 364064), (248, 293600), (256, 284425), (310, 234880), (320, 227540), (367, 198400), (400, 182032), (496, 146800), (620, 117440), (640, 113770), (734, 99200), (775, 93952), (800, 91016), (992, 73400), (1240, 58720), (1280, 56885), (1468, 49600), (1550, 46976), (1600, 45508), (1835, 39680), (1984, 36700), (2480, 29360), (2936, 24800), (3100, 23488), (3200, 22754), (3670, 19840), (3968, 18350), (4960, 14680), (5872, 12400), (6200, 11744), (6400, 11377), (7340, 9920), (7936, 9175)]