256134400

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1291}}^1$

素因数の和:1348

約数の個数: 108

約数和(自身を含む): 654930304

約数和(自身を除く): 398795904

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, 400, 496, 620, 640, 775, 800, 992, 1240, 1280, 1291, 1550, 1600, 1984, 2480, 2582, 3100, 3200, 3968, 4960, 5164, 6200, 6400, 6455, 7936, 9920, 10328, 12400, 12910, 19840, 20656, 24800, 25820, 32275, 39680, 40021, 41312, 49600, 51640, 64550, 80042, 82624, 99200, 103280, 129100, 160084, 165248, 198400, 200105, 206560, 258200, 320168, 330496, 400210, 413120, 516400, 640336, 800420, 826240, 1000525, 1032800, 1280672, 1600840, 1652480, 2001050, 2065600, 2561344, 3201680, 4002100, 4131200, 5122688, 6403360, 8004200, 8262400, 10245376, 12806720, 16008400, 25613440, 32016800, 51226880, 64033600, 128067200, 256134400]

約数ペア:

[(1, 256134400), (2, 128067200), (4, 64033600), (5, 51226880), (8, 32016800), (10, 25613440), (16, 16008400), (20, 12806720), (25, 10245376), (31, 8262400), (32, 8004200), (40, 6403360), (50, 5122688), (62, 4131200), (64, 4002100), (80, 3201680), (100, 2561344), (124, 2065600), (128, 2001050), (155, 1652480), (160, 1600840), (200, 1280672), (248, 1032800), (256, 1000525), (310, 826240), (320, 800420), (400, 640336), (496, 516400), (620, 413120), (640, 400210), (775, 330496), (800, 320168), (992, 258200), (1240, 206560), (1280, 200105), (1291, 198400), (1550, 165248), (1600, 160084), (1984, 129100), (2480, 103280), (2582, 99200), (3100, 82624), (3200, 80042), (3968, 64550), (4960, 51640), (5164, 49600), (6200, 41312), (6400, 40021), (6455, 39680), (7936, 32275), (9920, 25820), (10328, 24800), (12400, 20656), (12910, 19840)]