20272980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 192

約数和(自身を含む): 72253440

約数和(自身を除く): 51980460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 47, 52, 60, 65, 70, 78, 79, 84, 91, 94, 105, 130, 140, 141, 156, 158, 182, 188, 195, 210, 235, 237, 260, 273, 282, 316, 329, 364, 390, 395, 420, 455, 470, 474, 546, 553, 564, 611, 658, 705, 780, 790, 910, 940, 948, 987, 1027, 1092, 1106, 1185, 1222, 1316, 1365, 1410, 1580, 1645, 1659, 1820, 1833, 1974, 2054, 2212, 2370, 2444, 2730, 2765, 2820, 3055, 3081, 3290, 3318, 3666, 3713, 3948, 4108, 4277, 4740, 4935, 5135, 5460, 5530, 6110, 6162, 6580, 6636, 7189, 7332, 7426, 8295, 8554, 9165, 9870, 10270, 11060, 11139, 12220, 12324, 12831, 14378, 14852, 15405, 16590, 17108, 18330, 18565, 19740, 20540, 21385, 21567, 22278, 25662, 25991, 28756, 30810, 33180, 35945, 36660, 37130, 42770, 43134, 44556, 48269, 51324, 51982, 55695, 61620, 64155, 71890, 74260, 77973, 85540, 86268, 96538, 103964, 107835, 111390, 128310, 129955, 143780, 144807, 155946, 193076, 215670, 222780, 241345, 256620, 259910, 289614, 311892, 337883, 389865, 431340, 482690, 519820, 579228, 675766, 724035, 779730, 965380, 1013649, 1351532, 1448070, 1559460, 1689415, 2027298, 2896140, 3378830, 4054596, 5068245, 6757660, 10136490, 20272980]

約数ペア:

[(1, 20272980), (2, 10136490), (3, 6757660), (4, 5068245), (5, 4054596), (6, 3378830), (7, 2896140), (10, 2027298), (12, 1689415), (13, 1559460), (14, 1448070), (15, 1351532), (20, 1013649), (21, 965380), (26, 779730), (28, 724035), (30, 675766), (35, 579228), (39, 519820), (42, 482690), (47, 431340), (52, 389865), (60, 337883), (65, 311892), (70, 289614), (78, 259910), (79, 256620), (84, 241345), (91, 222780), (94, 215670), (105, 193076), (130, 155946), (140, 144807), (141, 143780), (156, 129955), (158, 128310), (182, 111390), (188, 107835), (195, 103964), (210, 96538), (235, 86268), (237, 85540), (260, 77973), (273, 74260), (282, 71890), (316, 64155), (329, 61620), (364, 55695), (390, 51982), (395, 51324), (420, 48269), (455, 44556), (470, 43134), (474, 42770), (546, 37130), (553, 36660), (564, 35945), (611, 33180), (658, 30810), (705, 28756), (780, 25991), (790, 25662), (910, 22278), (940, 21567), (948, 21385), (987, 20540), (1027, 19740), (1092, 18565), (1106, 18330), (1185, 17108), (1222, 16590), (1316, 15405), (1365, 14852), (1410, 14378), (1580, 12831), (1645, 12324), (1659, 12220), (1820, 11139), (1833, 11060), (1974, 10270), (2054, 9870), (2212, 9165), (2370, 8554), (2444, 8295), (2730, 7426), (2765, 7332), (2820, 7189), (3055, 6636), (3081, 6580), (3290, 6162), (3318, 6110), (3666, 5530), (3713, 5460), (3948, 5135), (4108, 4935), (4277, 4740)]