191221920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{97}}^1$

素因数の和:192

約数の個数: 216

約数和(自身を含む): 677571804

約数和(自身を除く): 486349884

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 96, 97, 111, 120, 144, 148, 160, 180, 185, 194, 222, 240, 288, 291, 296, 333, 360, 370, 388, 444, 480, 485, 555, 582, 592, 666, 720, 740, 776, 873, 888, 970, 1110, 1164, 1184, 1332, 1369, 1440, 1455, 1480, 1552, 1665, 1746, 1776, 1940, 2220, 2328, 2664, 2738, 2910, 2960, 3104, 3330, 3492, 3552, 3589, 3880, 4107, 4365, 4440, 4656, 5328, 5476, 5820, 5920, 6660, 6845, 6984, 7178, 7760, 8214, 8730, 8880, 9312, 10656, 10767, 10952, 11640, 12321, 13320, 13690, 13968, 14356, 15520, 16428, 17460, 17760, 17945, 20535, 21534, 21904, 23280, 24642, 26640, 27380, 27936, 28712, 32301, 32856, 34920, 35890, 41070, 43068, 43808, 46560, 49284, 53280, 53835, 54760, 57424, 61605, 64602, 65712, 69840, 71780, 82140, 86136, 98568, 107670, 109520, 114848, 123210, 129204, 131424, 132793, 139680, 143560, 161505, 164280, 172272, 197136, 215340, 219040, 246420, 258408, 265586, 287120, 323010, 328560, 344544, 394272, 398379, 430680, 492840, 516816, 531172, 574240, 646020, 657120, 663965, 796758, 861360, 985680, 1033632, 1062344, 1195137, 1292040, 1327930, 1593516, 1722720, 1971360, 1991895, 2124688, 2390274, 2584080, 2655860, 3187032, 3983790, 4249376, 4780548, 5168160, 5311720, 5975685, 6374064, 7967580, 9561096, 10623440, 11951370, 12748128, 15935160, 19122192, 21246880, 23902740, 31870320, 38244384, 47805480, 63740640, 95610960, 191221920]

約数ペア:

[(1, 191221920), (2, 95610960), (3, 63740640), (4, 47805480), (5, 38244384), (6, 31870320), (8, 23902740), (9, 21246880), (10, 19122192), (12, 15935160), (15, 12748128), (16, 11951370), (18, 10623440), (20, 9561096), (24, 7967580), (30, 6374064), (32, 5975685), (36, 5311720), (37, 5168160), (40, 4780548), (45, 4249376), (48, 3983790), (60, 3187032), (72, 2655860), (74, 2584080), (80, 2390274), (90, 2124688), (96, 1991895), (97, 1971360), (111, 1722720), (120, 1593516), (144, 1327930), (148, 1292040), (160, 1195137), (180, 1062344), (185, 1033632), (194, 985680), (222, 861360), (240, 796758), (288, 663965), (291, 657120), (296, 646020), (333, 574240), (360, 531172), (370, 516816), (388, 492840), (444, 430680), (480, 398379), (485, 394272), (555, 344544), (582, 328560), (592, 323010), (666, 287120), (720, 265586), (740, 258408), (776, 246420), (873, 219040), (888, 215340), (970, 197136), (1110, 172272), (1164, 164280), (1184, 161505), (1332, 143560), (1369, 139680), (1440, 132793), (1455, 131424), (1480, 129204), (1552, 123210), (1665, 114848), (1746, 109520), (1776, 107670), (1940, 98568), (2220, 86136), (2328, 82140), (2664, 71780), (2738, 69840), (2910, 65712), (2960, 64602), (3104, 61605), (3330, 57424), (3492, 54760), (3552, 53835), (3589, 53280), (3880, 49284), (4107, 46560), (4365, 43808), (4440, 43068), (4656, 41070), (5328, 35890), (5476, 34920), (5820, 32856), (5920, 32301), (6660, 28712), (6845, 27936), (6984, 27380), (7178, 26640), (7760, 24642), (8214, 23280), (8730, 21904), (8880, 21534), (9312, 20535), (10656, 17945), (10767, 17760), (10952, 17460), (11640, 16428), (12321, 15520), (13320, 14356), (13690, 13968)]