28836720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{331}}^1$

素因数の和:372

約数の個数: 180

約数和(自身を含む): 106769208

約数和(自身を除く): 77932488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 121, 132, 144, 165, 176, 180, 198, 220, 240, 242, 264, 330, 331, 360, 363, 396, 440, 484, 495, 528, 605, 660, 662, 720, 726, 792, 880, 968, 990, 993, 1089, 1210, 1320, 1324, 1452, 1584, 1655, 1815, 1936, 1980, 1986, 2178, 2420, 2640, 2648, 2904, 2979, 3310, 3630, 3641, 3960, 3972, 4356, 4840, 4965, 5296, 5445, 5808, 5958, 6620, 7260, 7282, 7920, 7944, 8712, 9680, 9930, 10890, 10923, 11916, 13240, 14520, 14564, 14895, 15888, 17424, 18205, 19860, 21780, 21846, 23832, 26480, 29040, 29128, 29790, 32769, 36410, 39720, 40051, 43560, 43692, 47664, 54615, 58256, 59580, 65538, 72820, 79440, 80102, 87120, 87384, 109230, 119160, 120153, 131076, 145640, 160204, 163845, 174768, 200255, 218460, 238320, 240306, 262152, 291280, 320408, 327690, 360459, 400510, 436920, 480612, 524304, 600765, 640816, 655380, 720918, 801020, 873840, 961224, 1201530, 1310760, 1441836, 1602040, 1802295, 1922448, 2403060, 2621520, 2883672, 3204080, 3604590, 4806120, 5767344, 7209180, 9612240, 14418360, 28836720]

約数ペア:

[(1, 28836720), (2, 14418360), (3, 9612240), (4, 7209180), (5, 5767344), (6, 4806120), (8, 3604590), (9, 3204080), (10, 2883672), (11, 2621520), (12, 2403060), (15, 1922448), (16, 1802295), (18, 1602040), (20, 1441836), (22, 1310760), (24, 1201530), (30, 961224), (33, 873840), (36, 801020), (40, 720918), (44, 655380), (45, 640816), (48, 600765), (55, 524304), (60, 480612), (66, 436920), (72, 400510), (80, 360459), (88, 327690), (90, 320408), (99, 291280), (110, 262152), (120, 240306), (121, 238320), (132, 218460), (144, 200255), (165, 174768), (176, 163845), (180, 160204), (198, 145640), (220, 131076), (240, 120153), (242, 119160), (264, 109230), (330, 87384), (331, 87120), (360, 80102), (363, 79440), (396, 72820), (440, 65538), (484, 59580), (495, 58256), (528, 54615), (605, 47664), (660, 43692), (662, 43560), (720, 40051), (726, 39720), (792, 36410), (880, 32769), (968, 29790), (990, 29128), (993, 29040), (1089, 26480), (1210, 23832), (1320, 21846), (1324, 21780), (1452, 19860), (1584, 18205), (1655, 17424), (1815, 15888), (1936, 14895), (1980, 14564), (1986, 14520), (2178, 13240), (2420, 11916), (2640, 10923), (2648, 10890), (2904, 9930), (2979, 9680), (3310, 8712), (3630, 7944), (3641, 7920), (3960, 7282), (3972, 7260), (4356, 6620), (4840, 5958), (4965, 5808), (5296, 5445)]