210816620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 551577600

約数和(自身を除く): 340760980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 47, 49, 70, 92, 94, 98, 115, 140, 161, 188, 196, 199, 230, 235, 245, 322, 329, 398, 460, 470, 490, 644, 658, 796, 805, 940, 980, 995, 1081, 1127, 1316, 1393, 1610, 1645, 1990, 2162, 2254, 2303, 2786, 3220, 3290, 3980, 4324, 4508, 4577, 4606, 5405, 5572, 5635, 6580, 6965, 7567, 9154, 9212, 9353, 9751, 10810, 11270, 11515, 13930, 15134, 18308, 18706, 19502, 21620, 22540, 22885, 23030, 27860, 30268, 32039, 37412, 37835, 39004, 45770, 46060, 46765, 48755, 52969, 64078, 65471, 75670, 91540, 93530, 97510, 105938, 128156, 130942, 151340, 160195, 187060, 195020, 211876, 215119, 224273, 261884, 264845, 320390, 327355, 430238, 448546, 458297, 529690, 640780, 654710, 860476, 897092, 916594, 1059380, 1075595, 1121365, 1309420, 1505833, 1833188, 2151190, 2242730, 2291485, 3011666, 4302380, 4485460, 4582970, 6023332, 7529165, 9165940, 10540831, 15058330, 21081662, 30116660, 42163324, 52704155, 105408310, 210816620]

約数ペア:

[(1, 210816620), (2, 105408310), (4, 52704155), (5, 42163324), (7, 30116660), (10, 21081662), (14, 15058330), (20, 10540831), (23, 9165940), (28, 7529165), (35, 6023332), (46, 4582970), (47, 4485460), (49, 4302380), (70, 3011666), (92, 2291485), (94, 2242730), (98, 2151190), (115, 1833188), (140, 1505833), (161, 1309420), (188, 1121365), (196, 1075595), (199, 1059380), (230, 916594), (235, 897092), (245, 860476), (322, 654710), (329, 640780), (398, 529690), (460, 458297), (470, 448546), (490, 430238), (644, 327355), (658, 320390), (796, 264845), (805, 261884), (940, 224273), (980, 215119), (995, 211876), (1081, 195020), (1127, 187060), (1316, 160195), (1393, 151340), (1610, 130942), (1645, 128156), (1990, 105938), (2162, 97510), (2254, 93530), (2303, 91540), (2786, 75670), (3220, 65471), (3290, 64078), (3980, 52969), (4324, 48755), (4508, 46765), (4577, 46060), (4606, 45770), (5405, 39004), (5572, 37835), (5635, 37412), (6580, 32039), (6965, 30268), (7567, 27860), (9154, 23030), (9212, 22885), (9353, 22540), (9751, 21620), (10810, 19502), (11270, 18706), (11515, 18308), (13930, 15134)]