205911720

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{1297}}^1$

素因数の和:1334

約数の個数: 240

約数和(自身を含む): 805707540

約数和(自身を除く): 599795820

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 360, 378, 392, 405, 420, 441, 490, 504, 540, 567, 588, 630, 648, 735, 756, 810, 840, 882, 945, 980, 1080, 1134, 1176, 1260, 1297, 1323, 1470, 1512, 1620, 1764, 1890, 1960, 2205, 2268, 2520, 2594, 2646, 2835, 2940, 3240, 3528, 3780, 3891, 3969, 4410, 4536, 5188, 5292, 5670, 5880, 6485, 6615, 7560, 7782, 7938, 8820, 9079, 10376, 10584, 11340, 11673, 12970, 13230, 15564, 15876, 17640, 18158, 19455, 19845, 22680, 23346, 25940, 26460, 27237, 31128, 31752, 35019, 36316, 38910, 39690, 45395, 46692, 51880, 52920, 54474, 58365, 63553, 70038, 72632, 77820, 79380, 81711, 90790, 93384, 105057, 108948, 116730, 127106, 136185, 140076, 155640, 158760, 163422, 175095, 181580, 190659, 210114, 217896, 233460, 245133, 254212, 272370, 280152, 317765, 326844, 350190, 363160, 381318, 408555, 420228, 466920, 490266, 508424, 525285, 544740, 571977, 635530, 653688, 700380, 735399, 762636, 817110, 840456, 953295, 980532, 1050570, 1089480, 1143954, 1225665, 1271060, 1400760, 1470798, 1525272, 1634220, 1715931, 1906590, 1961064, 2101140, 2287908, 2451330, 2542120, 2859885, 2941596, 3268440, 3431862, 3676995, 3813180, 4202280, 4575816, 4902660, 5147793, 5719770, 5883192, 6863724, 7353990, 7626360, 8579655, 9805320, 10295586, 11439540, 13727448, 14707980, 17159310, 20591172, 22879080, 25738965, 29415960, 34318620, 41182344, 51477930, 68637240, 102955860, 205911720]

約数ペア:

[(1, 205911720), (2, 102955860), (3, 68637240), (4, 51477930), (5, 41182344), (6, 34318620), (7, 29415960), (8, 25738965), (9, 22879080), (10, 20591172), (12, 17159310), (14, 14707980), (15, 13727448), (18, 11439540), (20, 10295586), (21, 9805320), (24, 8579655), (27, 7626360), (28, 7353990), (30, 6863724), (35, 5883192), (36, 5719770), (40, 5147793), (42, 4902660), (45, 4575816), (49, 4202280), (54, 3813180), (56, 3676995), (60, 3431862), (63, 3268440), (70, 2941596), (72, 2859885), (81, 2542120), (84, 2451330), (90, 2287908), (98, 2101140), (105, 1961064), (108, 1906590), (120, 1715931), (126, 1634220), (135, 1525272), (140, 1470798), (147, 1400760), (162, 1271060), (168, 1225665), (180, 1143954), (189, 1089480), (196, 1050570), (210, 980532), (216, 953295), (245, 840456), (252, 817110), (270, 762636), (280, 735399), (294, 700380), (315, 653688), (324, 635530), (360, 571977), (378, 544740), (392, 525285), (405, 508424), (420, 490266), (441, 466920), (490, 420228), (504, 408555), (540, 381318), (567, 363160), (588, 350190), (630, 326844), (648, 317765), (735, 280152), (756, 272370), (810, 254212), (840, 245133), (882, 233460), (945, 217896), (980, 210114), (1080, 190659), (1134, 181580), (1176, 175095), (1260, 163422), (1297, 158760), (1323, 155640), (1470, 140076), (1512, 136185), (1620, 127106), (1764, 116730), (1890, 108948), (1960, 105057), (2205, 93384), (2268, 90790), (2520, 81711), (2594, 79380), (2646, 77820), (2835, 72632), (2940, 70038), (3240, 63553), (3528, 58365), (3780, 54474), (3891, 52920), (3969, 51880), (4410, 46692), (4536, 45395), (5188, 39690), (5292, 38910), (5670, 36316), (5880, 35019), (6485, 31752), (6615, 31128), (7560, 27237), (7782, 26460), (7938, 25940), (8820, 23346), (9079, 22680), (10376, 19845), (10584, 19455), (11340, 18158), (11673, 17640), (12970, 15876), (13230, 15564)]