20780016

素因数分解:

$2^4\times 3^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 56091648

約数和(自身を除く): 35311632

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 47, 48, 61, 94, 122, 141, 151, 183, 188, 244, 282, 302, 366, 376, 453, 488, 564, 604, 732, 752, 906, 976, 1128, 1208, 1464, 1812, 2256, 2416, 2867, 2928, 3624, 5734, 7097, 7248, 8601, 9211, 11468, 14194, 17202, 18422, 21291, 22936, 27633, 28388, 34404, 36844, 42582, 45872, 55266, 56776, 68808, 73688, 85164, 110532, 113552, 137616, 147376, 170328, 221064, 340656, 432917, 442128, 865834, 1298751, 1731668, 2597502, 3463336, 5195004, 6926672, 10390008, 20780016]

約数ペア:

[(1, 20780016), (2, 10390008), (3, 6926672), (4, 5195004), (6, 3463336), (8, 2597502), (12, 1731668), (16, 1298751), (24, 865834), (47, 442128), (48, 432917), (61, 340656), (94, 221064), (122, 170328), (141, 147376), (151, 137616), (183, 113552), (188, 110532), (244, 85164), (282, 73688), (302, 68808), (366, 56776), (376, 55266), (453, 45872), (488, 42582), (564, 36844), (604, 34404), (732, 28388), (752, 27633), (906, 22936), (976, 21291), (1128, 18422), (1208, 17202), (1464, 14194), (1812, 11468), (2256, 9211), (2416, 8601), (2867, 7248), (2928, 7097), (3624, 5734)]