81443200

素因数分解:

$2^7\times 5^2\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:876

約数の個数: 96

約数和(自身を含む): 207933120

約数和(自身を除く): 126489920

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, 310, 320, 400, 496, 620, 640, 775, 800, 821, 992, 1240, 1550, 1600, 1642, 1984, 2480, 3100, 3200, 3284, 3968, 4105, 4960, 6200, 6568, 8210, 9920, 12400, 13136, 16420, 19840, 20525, 24800, 25451, 26272, 32840, 41050, 49600, 50902, 52544, 65680, 82100, 99200, 101804, 105088, 127255, 131360, 164200, 203608, 254510, 262720, 328400, 407216, 509020, 525440, 636275, 656800, 814432, 1018040, 1272550, 1313600, 1628864, 2036080, 2545100, 2627200, 3257728, 4072160, 5090200, 8144320, 10180400, 16288640, 20360800, 40721600, 81443200]

約数ペア:

[(1, 81443200), (2, 40721600), (4, 20360800), (5, 16288640), (8, 10180400), (10, 8144320), (16, 5090200), (20, 4072160), (25, 3257728), (31, 2627200), (32, 2545100), (40, 2036080), (50, 1628864), (62, 1313600), (64, 1272550), (80, 1018040), (100, 814432), (124, 656800), (128, 636275), (155, 525440), (160, 509020), (200, 407216), (248, 328400), (310, 262720), (320, 254510), (400, 203608), (496, 164200), (620, 131360), (640, 127255), (775, 105088), (800, 101804), (821, 99200), (992, 82100), (1240, 65680), (1550, 52544), (1600, 50902), (1642, 49600), (1984, 41050), (2480, 32840), (3100, 26272), (3200, 25451), (3284, 24800), (3968, 20525), (4105, 19840), (4960, 16420), (6200, 13136), (6568, 12400), (8210, 9920)]