20206620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 216

約数和(自身を含む): 74692800

約数和(自身を除く): 54486180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 49, 58, 60, 63, 70, 79, 84, 87, 90, 98, 105, 116, 126, 140, 145, 147, 158, 174, 180, 196, 203, 210, 237, 245, 252, 261, 290, 294, 315, 316, 348, 395, 406, 420, 435, 441, 474, 490, 522, 553, 580, 588, 609, 630, 711, 735, 790, 812, 870, 882, 948, 980, 1015, 1044, 1106, 1185, 1218, 1260, 1305, 1421, 1422, 1470, 1580, 1659, 1740, 1764, 1827, 2030, 2205, 2212, 2291, 2370, 2436, 2610, 2765, 2842, 2844, 2940, 3045, 3318, 3555, 3654, 3871, 4060, 4263, 4410, 4582, 4740, 4977, 5220, 5530, 5684, 6090, 6636, 6873, 7105, 7110, 7308, 7742, 8295, 8526, 8820, 9135, 9164, 9954, 11060, 11455, 11613, 12180, 12789, 13746, 14210, 14220, 15484, 16037, 16590, 17052, 18270, 19355, 19908, 20619, 21315, 22910, 23226, 24885, 25578, 27492, 28420, 32074, 33180, 34365, 34839, 36540, 38710, 41238, 42630, 45820, 46452, 48111, 49770, 51156, 58065, 63945, 64148, 68730, 69678, 77420, 80185, 82476, 85260, 96222, 99540, 103095, 112259, 116130, 127890, 137460, 139356, 144333, 160370, 174195, 192444, 206190, 224518, 232260, 240555, 255780, 288666, 320740, 336777, 348390, 412380, 449036, 481110, 561295, 577332, 673554, 696780, 721665, 962220, 1010331, 1122590, 1347108, 1443330, 1683885, 2020662, 2245180, 2886660, 3367770, 4041324, 5051655, 6735540, 10103310, 20206620]

約数ペア:

[(1, 20206620), (2, 10103310), (3, 6735540), (4, 5051655), (5, 4041324), (6, 3367770), (7, 2886660), (9, 2245180), (10, 2020662), (12, 1683885), (14, 1443330), (15, 1347108), (18, 1122590), (20, 1010331), (21, 962220), (28, 721665), (29, 696780), (30, 673554), (35, 577332), (36, 561295), (42, 481110), (45, 449036), (49, 412380), (58, 348390), (60, 336777), (63, 320740), (70, 288666), (79, 255780), (84, 240555), (87, 232260), (90, 224518), (98, 206190), (105, 192444), (116, 174195), (126, 160370), (140, 144333), (145, 139356), (147, 137460), (158, 127890), (174, 116130), (180, 112259), (196, 103095), (203, 99540), (210, 96222), (237, 85260), (245, 82476), (252, 80185), (261, 77420), (290, 69678), (294, 68730), (315, 64148), (316, 63945), (348, 58065), (395, 51156), (406, 49770), (420, 48111), (435, 46452), (441, 45820), (474, 42630), (490, 41238), (522, 38710), (553, 36540), (580, 34839), (588, 34365), (609, 33180), (630, 32074), (711, 28420), (735, 27492), (790, 25578), (812, 24885), (870, 23226), (882, 22910), (948, 21315), (980, 20619), (1015, 19908), (1044, 19355), (1106, 18270), (1185, 17052), (1218, 16590), (1260, 16037), (1305, 15484), (1421, 14220), (1422, 14210), (1470, 13746), (1580, 12789), (1659, 12180), (1740, 11613), (1764, 11455), (1827, 11060), (2030, 9954), (2205, 9164), (2212, 9135), (2291, 8820), (2370, 8526), (2436, 8295), (2610, 7742), (2765, 7308), (2842, 7110), (2844, 7105), (2940, 6873), (3045, 6636), (3318, 6090), (3555, 5684), (3654, 5530), (3871, 5220), (4060, 4977), (4263, 4740), (4410, 4582)]