171199980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:546

約数の個数: 240

約数和(自身を含む): 634884096

約数和(自身を除く): 463684116

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 54, 60, 62, 63, 70, 81, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 162, 180, 186, 189, 210, 217, 252, 270, 279, 310, 315, 324, 372, 378, 405, 420, 434, 465, 487, 540, 558, 567, 620, 630, 651, 756, 810, 837, 868, 930, 945, 974, 1085, 1116, 1134, 1260, 1302, 1395, 1461, 1620, 1674, 1860, 1890, 1948, 1953, 2170, 2268, 2435, 2511, 2604, 2790, 2835, 2922, 3255, 3348, 3409, 3780, 3906, 4185, 4340, 4383, 4870, 5022, 5580, 5670, 5844, 5859, 6510, 6818, 7305, 7812, 8370, 8766, 9740, 9765, 10044, 10227, 11340, 11718, 12555, 13020, 13149, 13636, 14610, 15097, 16740, 17045, 17532, 17577, 19530, 20454, 21915, 23436, 25110, 26298, 29220, 29295, 30194, 30681, 34090, 35154, 39060, 39447, 40908, 43830, 45291, 50220, 51135, 52596, 58590, 60388, 61362, 65745, 68180, 70308, 75485, 78894, 87660, 87885, 90582, 92043, 102270, 105679, 117180, 122724, 131490, 135873, 150970, 153405, 157788, 175770, 181164, 184086, 197235, 204540, 211358, 226455, 262980, 271746, 276129, 301940, 306810, 317037, 351540, 368172, 394470, 407619, 422716, 452910, 460215, 528395, 543492, 552258, 613620, 634074, 679365, 788940, 815238, 905820, 920430, 951111, 1056790, 1104516, 1222857, 1268148, 1358730, 1380645, 1585185, 1630476, 1840860, 1902222, 2038095, 2113580, 2445714, 2717460, 2761290, 2853333, 3170370, 3804444, 4076190, 4755555, 4891428, 5522580, 5706666, 6114285, 6340740, 8152380, 8559999, 9511110, 11413332, 12228570, 14266665, 17119998, 19022220, 24457140, 28533330, 34239996, 42799995, 57066660, 85599990, 171199980]

約数ペア:

[(1, 171199980), (2, 85599990), (3, 57066660), (4, 42799995), (5, 34239996), (6, 28533330), (7, 24457140), (9, 19022220), (10, 17119998), (12, 14266665), (14, 12228570), (15, 11413332), (18, 9511110), (20, 8559999), (21, 8152380), (27, 6340740), (28, 6114285), (30, 5706666), (31, 5522580), (35, 4891428), (36, 4755555), (42, 4076190), (45, 3804444), (54, 3170370), (60, 2853333), (62, 2761290), (63, 2717460), (70, 2445714), (81, 2113580), (84, 2038095), (90, 1902222), (93, 1840860), (105, 1630476), (108, 1585185), (124, 1380645), (126, 1358730), (135, 1268148), (140, 1222857), (155, 1104516), (162, 1056790), (180, 951111), (186, 920430), (189, 905820), (210, 815238), (217, 788940), (252, 679365), (270, 634074), (279, 613620), (310, 552258), (315, 543492), (324, 528395), (372, 460215), (378, 452910), (405, 422716), (420, 407619), (434, 394470), (465, 368172), (487, 351540), (540, 317037), (558, 306810), (567, 301940), (620, 276129), (630, 271746), (651, 262980), (756, 226455), (810, 211358), (837, 204540), (868, 197235), (930, 184086), (945, 181164), (974, 175770), (1085, 157788), (1116, 153405), (1134, 150970), (1260, 135873), (1302, 131490), (1395, 122724), (1461, 117180), (1620, 105679), (1674, 102270), (1860, 92043), (1890, 90582), (1948, 87885), (1953, 87660), (2170, 78894), (2268, 75485), (2435, 70308), (2511, 68180), (2604, 65745), (2790, 61362), (2835, 60388), (2922, 58590), (3255, 52596), (3348, 51135), (3409, 50220), (3780, 45291), (3906, 43830), (4185, 40908), (4340, 39447), (4383, 39060), (4870, 35154), (5022, 34090), (5580, 30681), (5670, 30194), (5844, 29295), (5859, 29220), (6510, 26298), (6818, 25110), (7305, 23436), (7812, 21915), (8370, 20454), (8766, 19530), (9740, 17577), (9765, 17532), (10044, 17045), (10227, 16740), (11340, 15097), (11718, 14610), (12555, 13636), (13020, 13149)]