820189728

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{40111}}^1$

素因数の和:40198

約数の個数: 72

約数和(自身を含む): 2365324416

約数和(自身を除く): 1545134688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 1136, 1278, 1704, 2272, 2556, 3408, 5112, 6816, 10224, 20448, 40111, 80222, 120333, 160444, 240666, 320888, 360999, 481332, 641776, 721998, 962664, 1283552, 1443996, 1925328, 2847881, 2887992, 3850656, 5695762, 5775984, 8543643, 11391524, 11551968, 17087286, 22783048, 25630929, 34174572, 45566096, 51261858, 68349144, 91132192, 102523716, 136698288, 205047432, 273396576, 410094864, 820189728]

約数ペア:

[(1, 820189728), (2, 410094864), (3, 273396576), (4, 205047432), (6, 136698288), (8, 102523716), (9, 91132192), (12, 68349144), (16, 51261858), (18, 45566096), (24, 34174572), (32, 25630929), (36, 22783048), (48, 17087286), (71, 11551968), (72, 11391524), (96, 8543643), (142, 5775984), (144, 5695762), (213, 3850656), (284, 2887992), (288, 2847881), (426, 1925328), (568, 1443996), (639, 1283552), (852, 962664), (1136, 721998), (1278, 641776), (1704, 481332), (2272, 360999), (2556, 320888), (3408, 240666), (5112, 160444), (6816, 120333), (10224, 80222), (20448, 40111)]