28831860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5167}}^1$

素因数の和:5213

約数の個数: 72

約数和(自身を含む): 90295296

約数和(自身を除く): 61463436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5167, 5580, 10334, 15501, 20668, 25835, 31002, 46503, 51670, 62004, 77505, 93006, 103340, 155010, 160177, 186012, 232515, 310020, 320354, 465030, 480531, 640708, 800885, 930060, 961062, 1441593, 1601770, 1922124, 2402655, 2883186, 3203540, 4805310, 5766372, 7207965, 9610620, 14415930, 28831860]

約数ペア:

[(1, 28831860), (2, 14415930), (3, 9610620), (4, 7207965), (5, 5766372), (6, 4805310), (9, 3203540), (10, 2883186), (12, 2402655), (15, 1922124), (18, 1601770), (20, 1441593), (30, 961062), (31, 930060), (36, 800885), (45, 640708), (60, 480531), (62, 465030), (90, 320354), (93, 310020), (124, 232515), (155, 186012), (180, 160177), (186, 155010), (279, 103340), (310, 93006), (372, 77505), (465, 62004), (558, 51670), (620, 46503), (930, 31002), (1116, 25835), (1395, 20668), (1860, 15501), (2790, 10334), (5167, 5580)]