20471904

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{2293}}^1$

素因数の和:2340

約数の個数: 72

約数和(自身を含む): 60121152

約数和(自身を除く): 39649248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 496, 558, 744, 992, 1116, 1488, 2232, 2293, 2976, 4464, 4586, 6879, 8928, 9172, 13758, 18344, 20637, 27516, 36688, 41274, 55032, 71083, 73376, 82548, 110064, 142166, 165096, 213249, 220128, 284332, 330192, 426498, 568664, 639747, 660384, 852996, 1137328, 1279494, 1705992, 2274656, 2558988, 3411984, 5117976, 6823968, 10235952, 20471904]

約数ペア:

[(1, 20471904), (2, 10235952), (3, 6823968), (4, 5117976), (6, 3411984), (8, 2558988), (9, 2274656), (12, 1705992), (16, 1279494), (18, 1137328), (24, 852996), (31, 660384), (32, 639747), (36, 568664), (48, 426498), (62, 330192), (72, 284332), (93, 220128), (96, 213249), (124, 165096), (144, 142166), (186, 110064), (248, 82548), (279, 73376), (288, 71083), (372, 55032), (496, 41274), (558, 36688), (744, 27516), (992, 20637), (1116, 18344), (1488, 13758), (2232, 9172), (2293, 8928), (2976, 6879), (4464, 4586)]