19913040

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{439}}^1$

素因数の和:471

約数の個数: 200

約数和(自身を含む): 79221120

約数和(自身を除く): 59308080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 439, 504, 540, 560, 567, 630, 648, 720, 756, 810, 840, 878, 945, 1008, 1080, 1134, 1260, 1296, 1317, 1512, 1620, 1680, 1756, 1890, 2160, 2195, 2268, 2520, 2634, 2835, 3024, 3073, 3240, 3512, 3780, 3951, 4390, 4536, 5040, 5268, 5670, 6146, 6480, 6585, 7024, 7560, 7902, 8780, 9072, 9219, 10536, 11340, 11853, 12292, 13170, 15120, 15365, 15804, 17560, 18438, 19755, 21072, 22680, 23706, 24584, 26340, 27657, 30730, 31608, 35120, 35559, 36876, 39510, 45360, 46095, 47412, 49168, 52680, 55314, 59265, 61460, 63216, 71118, 73752, 79020, 82971, 92190, 94824, 105360, 110628, 118530, 122920, 138285, 142236, 147504, 158040, 165942, 177795, 184380, 189648, 221256, 237060, 245840, 248913, 276570, 284472, 316080, 331884, 355590, 368760, 414855, 442512, 474120, 497826, 553140, 568944, 663768, 711180, 737520, 829710, 948240, 995652, 1106280, 1244565, 1327536, 1422360, 1659420, 1991304, 2212560, 2489130, 2844720, 3318840, 3982608, 4978260, 6637680, 9956520, 19913040]

約数ペア:

[(1, 19913040), (2, 9956520), (3, 6637680), (4, 4978260), (5, 3982608), (6, 3318840), (7, 2844720), (8, 2489130), (9, 2212560), (10, 1991304), (12, 1659420), (14, 1422360), (15, 1327536), (16, 1244565), (18, 1106280), (20, 995652), (21, 948240), (24, 829710), (27, 737520), (28, 711180), (30, 663768), (35, 568944), (36, 553140), (40, 497826), (42, 474120), (45, 442512), (48, 414855), (54, 368760), (56, 355590), (60, 331884), (63, 316080), (70, 284472), (72, 276570), (80, 248913), (81, 245840), (84, 237060), (90, 221256), (105, 189648), (108, 184380), (112, 177795), (120, 165942), (126, 158040), (135, 147504), (140, 142236), (144, 138285), (162, 122920), (168, 118530), (180, 110628), (189, 105360), (210, 94824), (216, 92190), (240, 82971), (252, 79020), (270, 73752), (280, 71118), (315, 63216), (324, 61460), (336, 59265), (360, 55314), (378, 52680), (405, 49168), (420, 47412), (432, 46095), (439, 45360), (504, 39510), (540, 36876), (560, 35559), (567, 35120), (630, 31608), (648, 30730), (720, 27657), (756, 26340), (810, 24584), (840, 23706), (878, 22680), (945, 21072), (1008, 19755), (1080, 18438), (1134, 17560), (1260, 15804), (1296, 15365), (1317, 15120), (1512, 13170), (1620, 12292), (1680, 11853), (1756, 11340), (1890, 10536), (2160, 9219), (2195, 9072), (2268, 8780), (2520, 7902), (2634, 7560), (2835, 7024), (3024, 6585), (3073, 6480), (3240, 6146), (3512, 5670), (3780, 5268), (3951, 5040), (4390, 4536)]