80451200

素因数分解:

$2^7\times 5^2\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:866

約数の個数: 96

約数和(自身を含む): 205403520

約数和(自身を除く): 124952320

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, 811, 992, 1240, 1550, 1600, 1622, 1984, 2480, 3100, 3200, 3244, 3968, 4055, 4960, 6200, 6488, 8110, 9920, 12400, 12976, 16220, 19840, 20275, 24800, 25141, 25952, 32440, 40550, 49600, 50282, 51904, 64880, 81100, 99200, 100564, 103808, 125705, 129760, 162200, 201128, 251410, 259520, 324400, 402256, 502820, 519040, 628525, 648800, 804512, 1005640, 1257050, 1297600, 1609024, 2011280, 2514100, 2595200, 3218048, 4022560, 5028200, 8045120, 10056400, 16090240, 20112800, 40225600, 80451200]

約数ペア:

[(1, 80451200), (2, 40225600), (4, 20112800), (5, 16090240), (8, 10056400), (10, 8045120), (16, 5028200), (20, 4022560), (25, 3218048), (31, 2595200), (32, 2514100), (40, 2011280), (50, 1609024), (62, 1297600), (64, 1257050), (80, 1005640), (100, 804512), (124, 648800), (128, 628525), (155, 519040), (160, 502820), (200, 402256), (248, 324400), (310, 259520), (320, 251410), (400, 201128), (496, 162200), (620, 129760), (640, 125705), (775, 103808), (800, 100564), (811, 99200), (992, 81100), (1240, 64880), (1550, 51904), (1600, 50282), (1622, 49600), (1984, 40550), (2480, 32440), (3100, 25952), (3200, 25141), (3244, 24800), (3968, 20275), (4055, 19840), (4960, 16220), (6200, 12976), (6488, 12400), (8110, 9920)]