80001720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 192

約数和(自身を含む): 275184000

約数和(自身を除く): 195182280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 79, 87, 90, 97, 116, 120, 145, 158, 174, 180, 194, 232, 237, 261, 290, 291, 316, 348, 360, 388, 395, 435, 474, 485, 522, 580, 582, 632, 696, 711, 776, 790, 870, 873, 948, 970, 1044, 1160, 1164, 1185, 1305, 1422, 1455, 1580, 1740, 1746, 1896, 1940, 2088, 2291, 2328, 2370, 2610, 2813, 2844, 2910, 3160, 3480, 3492, 3555, 3880, 4365, 4582, 4740, 5220, 5626, 5688, 5820, 6873, 6984, 7110, 7663, 8439, 8730, 9164, 9480, 10440, 11252, 11455, 11640, 13746, 14065, 14220, 15326, 16878, 17460, 18328, 20619, 22504, 22910, 22989, 25317, 27492, 28130, 28440, 30652, 33756, 34365, 34920, 38315, 41238, 42195, 45820, 45978, 50634, 54984, 56260, 61304, 67512, 68730, 68967, 76630, 82476, 84390, 91640, 91956, 101268, 103095, 112520, 114945, 126585, 137460, 137934, 153260, 164952, 168780, 183912, 202536, 206190, 222227, 229890, 253170, 274920, 275868, 306520, 337560, 344835, 412380, 444454, 459780, 506340, 551736, 666681, 689670, 824760, 888908, 919560, 1012680, 1111135, 1333362, 1379340, 1777816, 2000043, 2222270, 2666724, 2758680, 3333405, 4000086, 4444540, 5333448, 6666810, 8000172, 8889080, 10000215, 13333620, 16000344, 20000430, 26667240, 40000860, 80001720]

約数ペア:

[(1, 80001720), (2, 40000860), (3, 26667240), (4, 20000430), (5, 16000344), (6, 13333620), (8, 10000215), (9, 8889080), (10, 8000172), (12, 6666810), (15, 5333448), (18, 4444540), (20, 4000086), (24, 3333405), (29, 2758680), (30, 2666724), (36, 2222270), (40, 2000043), (45, 1777816), (58, 1379340), (60, 1333362), (72, 1111135), (79, 1012680), (87, 919560), (90, 888908), (97, 824760), (116, 689670), (120, 666681), (145, 551736), (158, 506340), (174, 459780), (180, 444454), (194, 412380), (232, 344835), (237, 337560), (261, 306520), (290, 275868), (291, 274920), (316, 253170), (348, 229890), (360, 222227), (388, 206190), (395, 202536), (435, 183912), (474, 168780), (485, 164952), (522, 153260), (580, 137934), (582, 137460), (632, 126585), (696, 114945), (711, 112520), (776, 103095), (790, 101268), (870, 91956), (873, 91640), (948, 84390), (970, 82476), (1044, 76630), (1160, 68967), (1164, 68730), (1185, 67512), (1305, 61304), (1422, 56260), (1455, 54984), (1580, 50634), (1740, 45978), (1746, 45820), (1896, 42195), (1940, 41238), (2088, 38315), (2291, 34920), (2328, 34365), (2370, 33756), (2610, 30652), (2813, 28440), (2844, 28130), (2910, 27492), (3160, 25317), (3480, 22989), (3492, 22910), (3555, 22504), (3880, 20619), (4365, 18328), (4582, 17460), (4740, 16878), (5220, 15326), (5626, 14220), (5688, 14065), (5820, 13746), (6873, 11640), (6984, 11455), (7110, 11252), (7663, 10440), (8439, 9480), (8730, 9164)]