20901504

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 40788096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 53, 64, 78, 79, 96, 104, 106, 128, 156, 158, 159, 192, 208, 212, 237, 312, 316, 318, 384, 416, 424, 474, 624, 632, 636, 689, 832, 848, 948, 1027, 1248, 1264, 1272, 1378, 1664, 1696, 1896, 2054, 2067, 2496, 2528, 2544, 2756, 3081, 3392, 3792, 4108, 4134, 4187, 4992, 5056, 5088, 5512, 6162, 6784, 7584, 8216, 8268, 8374, 10112, 10176, 11024, 12324, 12561, 15168, 16432, 16536, 16748, 20352, 22048, 24648, 25122, 30336, 32864, 33072, 33496, 44096, 49296, 50244, 54431, 65728, 66144, 66992, 88192, 98592, 100488, 108862, 131456, 132288, 133984, 163293, 197184, 200976, 217724, 264576, 267968, 326586, 394368, 401952, 435448, 535936, 653172, 803904, 870896, 1306344, 1607808, 1741792, 2612688, 3483584, 5225376, 6967168, 10450752, 20901504]

約数ペア:

[(1, 20901504), (2, 10450752), (3, 6967168), (4, 5225376), (6, 3483584), (8, 2612688), (12, 1741792), (13, 1607808), (16, 1306344), (24, 870896), (26, 803904), (32, 653172), (39, 535936), (48, 435448), (52, 401952), (53, 394368), (64, 326586), (78, 267968), (79, 264576), (96, 217724), (104, 200976), (106, 197184), (128, 163293), (156, 133984), (158, 132288), (159, 131456), (192, 108862), (208, 100488), (212, 98592), (237, 88192), (312, 66992), (316, 66144), (318, 65728), (384, 54431), (416, 50244), (424, 49296), (474, 44096), (624, 33496), (632, 33072), (636, 32864), (689, 30336), (832, 25122), (848, 24648), (948, 22048), (1027, 20352), (1248, 16748), (1264, 16536), (1272, 16432), (1378, 15168), (1664, 12561), (1696, 12324), (1896, 11024), (2054, 10176), (2067, 10112), (2496, 8374), (2528, 8268), (2544, 8216), (2756, 7584), (3081, 6784), (3392, 6162), (3792, 5512), (4108, 5088), (4134, 5056), (4187, 4992)]