20280144

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 56732480

約数和(自身を除く): 36452336

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 37, 38, 48, 57, 74, 76, 111, 114, 148, 152, 222, 228, 296, 304, 444, 456, 592, 601, 703, 888, 912, 1202, 1406, 1776, 1803, 2109, 2404, 2812, 3606, 4218, 4808, 5624, 7212, 8436, 9616, 11248, 11419, 14424, 16872, 22237, 22838, 28848, 33744, 34257, 44474, 45676, 66711, 68514, 88948, 91352, 133422, 137028, 177896, 182704, 266844, 274056, 355792, 422503, 533688, 548112, 845006, 1067376, 1267509, 1690012, 2535018, 3380024, 5070036, 6760048, 10140072, 20280144]

約数ペア:

[(1, 20280144), (2, 10140072), (3, 6760048), (4, 5070036), (6, 3380024), (8, 2535018), (12, 1690012), (16, 1267509), (19, 1067376), (24, 845006), (37, 548112), (38, 533688), (48, 422503), (57, 355792), (74, 274056), (76, 266844), (111, 182704), (114, 177896), (148, 137028), (152, 133422), (222, 91352), (228, 88948), (296, 68514), (304, 66711), (444, 45676), (456, 44474), (592, 34257), (601, 33744), (703, 28848), (888, 22838), (912, 22237), (1202, 16872), (1406, 14424), (1776, 11419), (1803, 11248), (2109, 9616), (2404, 8436), (2812, 7212), (3606, 5624), (4218, 4808)]