80647740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 256838400

約数和(自身を除く): 176190660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 97, 124, 149, 155, 180, 186, 194, 279, 291, 298, 310, 372, 388, 447, 465, 485, 558, 582, 596, 620, 745, 873, 894, 930, 970, 1116, 1164, 1341, 1395, 1455, 1490, 1746, 1788, 1860, 1940, 2235, 2682, 2790, 2910, 2980, 3007, 3492, 4365, 4470, 4619, 5364, 5580, 5820, 6014, 6705, 8730, 8940, 9021, 9238, 12028, 13410, 13857, 14453, 15035, 17460, 18042, 18476, 23095, 26820, 27063, 27714, 28906, 30070, 36084, 41571, 43359, 45105, 46190, 54126, 55428, 57812, 60140, 69285, 72265, 83142, 86718, 90210, 92380, 108252, 130077, 135315, 138570, 144530, 166284, 173436, 180420, 207855, 216795, 260154, 270630, 277140, 289060, 415710, 433590, 448043, 520308, 541260, 650385, 831420, 867180, 896086, 1300770, 1344129, 1792172, 2240215, 2601540, 2688258, 4032387, 4480430, 5376516, 6720645, 8064774, 8960860, 13441290, 16129548, 20161935, 26882580, 40323870, 80647740]

約数ペア:

[(1, 80647740), (2, 40323870), (3, 26882580), (4, 20161935), (5, 16129548), (6, 13441290), (9, 8960860), (10, 8064774), (12, 6720645), (15, 5376516), (18, 4480430), (20, 4032387), (30, 2688258), (31, 2601540), (36, 2240215), (45, 1792172), (60, 1344129), (62, 1300770), (90, 896086), (93, 867180), (97, 831420), (124, 650385), (149, 541260), (155, 520308), (180, 448043), (186, 433590), (194, 415710), (279, 289060), (291, 277140), (298, 270630), (310, 260154), (372, 216795), (388, 207855), (447, 180420), (465, 173436), (485, 166284), (558, 144530), (582, 138570), (596, 135315), (620, 130077), (745, 108252), (873, 92380), (894, 90210), (930, 86718), (970, 83142), (1116, 72265), (1164, 69285), (1341, 60140), (1395, 57812), (1455, 55428), (1490, 54126), (1746, 46190), (1788, 45105), (1860, 43359), (1940, 41571), (2235, 36084), (2682, 30070), (2790, 28906), (2910, 27714), (2980, 27063), (3007, 26820), (3492, 23095), (4365, 18476), (4470, 18042), (4619, 17460), (5364, 15035), (5580, 14453), (5820, 13857), (6014, 13410), (6705, 12028), (8730, 9238), (8940, 9021)]