80787200

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:1010

約数の個数: 108

約数和(自身を含む): 215564328

約数和(自身を除く): 134777128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 971, 1040, 1280, 1300, 1600, 1664, 1942, 2080, 2600, 3200, 3328, 3884, 4160, 4855, 5200, 6400, 7768, 8320, 9710, 10400, 12623, 15536, 16640, 19420, 20800, 24275, 25246, 31072, 38840, 41600, 48550, 50492, 62144, 63115, 77680, 83200, 97100, 100984, 124288, 126230, 155360, 194200, 201968, 248576, 252460, 310720, 315575, 388400, 403936, 504920, 621440, 631150, 776800, 807872, 1009840, 1242880, 1262300, 1553600, 1615744, 2019680, 2524600, 3107200, 3231488, 4039360, 5049200, 6214400, 8078720, 10098400, 16157440, 20196800, 40393600, 80787200]

約数ペア:

[(1, 80787200), (2, 40393600), (4, 20196800), (5, 16157440), (8, 10098400), (10, 8078720), (13, 6214400), (16, 5049200), (20, 4039360), (25, 3231488), (26, 3107200), (32, 2524600), (40, 2019680), (50, 1615744), (52, 1553600), (64, 1262300), (65, 1242880), (80, 1009840), (100, 807872), (104, 776800), (128, 631150), (130, 621440), (160, 504920), (200, 403936), (208, 388400), (256, 315575), (260, 310720), (320, 252460), (325, 248576), (400, 201968), (416, 194200), (520, 155360), (640, 126230), (650, 124288), (800, 100984), (832, 97100), (971, 83200), (1040, 77680), (1280, 63115), (1300, 62144), (1600, 50492), (1664, 48550), (1942, 41600), (2080, 38840), (2600, 31072), (3200, 25246), (3328, 24275), (3884, 20800), (4160, 19420), (4855, 16640), (5200, 15536), (6400, 12623), (7768, 10400), (8320, 9710)]