20855158740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1259}}^1\times {\mathrm{7079}}^1$

素因数の和:8366

約数の個数: 144

約数和(自身を含む): 68190595200

約数和(自身を除く): 47335436460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 1259, 2340, 2518, 3777, 5036, 6295, 7079, 7554, 11331, 12590, 14158, 15108, 16367, 18885, 21237, 22662, 25180, 28316, 32734, 35395, 37770, 42474, 45324, 49101, 56655, 63711, 65468, 70790, 75540, 81835, 84948, 92027, 98202, 106185, 113310, 127422, 141580, 147303, 163670, 184054, 196404, 212370, 226620, 245505, 254844, 276081, 294606, 318555, 327340, 368108, 424740, 460135, 491010, 552162, 589212, 637110, 736515, 828243, 920270, 982020, 1104324, 1274220, 1380405, 1473030, 1656486, 1840540, 2760810, 2946060, 3312972, 4141215, 5521620, 8282430, 8912461, 16564860, 17824922, 26737383, 35649844, 44562305, 53474766, 80212149, 89124610, 106949532, 115861993, 133686915, 160424298, 178249220, 231723986, 267373830, 320848596, 347585979, 401060745, 463447972, 534747660, 579309965, 695171958, 802121490, 1042757937, 1158619930, 1390343916, 1604242980, 1737929895, 2085515874, 2317239860, 3475859790, 4171031748, 5213789685, 6951719580, 10427579370, 20855158740]

約数ペア:

[(1, 20855158740), (2, 10427579370), (3, 6951719580), (4, 5213789685), (5, 4171031748), (6, 3475859790), (9, 2317239860), (10, 2085515874), (12, 1737929895), (13, 1604242980), (15, 1390343916), (18, 1158619930), (20, 1042757937), (26, 802121490), (30, 695171958), (36, 579309965), (39, 534747660), (45, 463447972), (52, 401060745), (60, 347585979), (65, 320848596), (78, 267373830), (90, 231723986), (117, 178249220), (130, 160424298), (156, 133686915), (180, 115861993), (195, 106949532), (234, 89124610), (260, 80212149), (390, 53474766), (468, 44562305), (585, 35649844), (780, 26737383), (1170, 17824922), (1259, 16564860), (2340, 8912461), (2518, 8282430), (3777, 5521620), (5036, 4141215), (6295, 3312972), (7079, 2946060), (7554, 2760810), (11331, 1840540), (12590, 1656486), (14158, 1473030), (15108, 1380405), (16367, 1274220), (18885, 1104324), (21237, 982020), (22662, 920270), (25180, 828243), (28316, 736515), (32734, 637110), (35395, 589212), (37770, 552162), (42474, 491010), (45324, 460135), (49101, 424740), (56655, 368108), (63711, 327340), (65468, 318555), (70790, 294606), (75540, 276081), (81835, 254844), (84948, 245505), (92027, 226620), (98202, 212370), (106185, 196404), (113310, 184054), (127422, 163670), (141580, 147303)]