18980640

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{269}}^1$

素因数の和:304

約数の個数: 216

約数和(自身を含む): 75626460

約数和(自身を除く): 56645820

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 269, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 538, 560, 588, 630, 672, 720, 735, 784, 807, 840, 882, 980, 1008, 1076, 1120, 1176, 1260, 1345, 1440, 1470, 1568, 1614, 1680, 1764, 1883, 1960, 2016, 2152, 2205, 2352, 2421, 2520, 2690, 2940, 3228, 3360, 3528, 3766, 3920, 4035, 4304, 4410, 4704, 4842, 5040, 5380, 5649, 5880, 6456, 7056, 7532, 7840, 8070, 8608, 8820, 9415, 9684, 10080, 10760, 11298, 11760, 12105, 12912, 13181, 14112, 15064, 16140, 16947, 17640, 18830, 19368, 21520, 22596, 23520, 24210, 25824, 26362, 28245, 30128, 32280, 33894, 35280, 37660, 38736, 39543, 43040, 45192, 48420, 52724, 56490, 60256, 64560, 65905, 67788, 70560, 75320, 77472, 79086, 84735, 90384, 96840, 105448, 112980, 118629, 129120, 131810, 135576, 150640, 158172, 169470, 180768, 193680, 197715, 210896, 225960, 237258, 263620, 271152, 301280, 316344, 338940, 387360, 395430, 421792, 451920, 474516, 527240, 542304, 593145, 632688, 677880, 790860, 903840, 949032, 1054480, 1186290, 1265376, 1355760, 1581720, 1898064, 2108960, 2372580, 2711520, 3163440, 3796128, 4745160, 6326880, 9490320, 18980640]

約数ペア:

[(1, 18980640), (2, 9490320), (3, 6326880), (4, 4745160), (5, 3796128), (6, 3163440), (7, 2711520), (8, 2372580), (9, 2108960), (10, 1898064), (12, 1581720), (14, 1355760), (15, 1265376), (16, 1186290), (18, 1054480), (20, 949032), (21, 903840), (24, 790860), (28, 677880), (30, 632688), (32, 593145), (35, 542304), (36, 527240), (40, 474516), (42, 451920), (45, 421792), (48, 395430), (49, 387360), (56, 338940), (60, 316344), (63, 301280), (70, 271152), (72, 263620), (80, 237258), (84, 225960), (90, 210896), (96, 197715), (98, 193680), (105, 180768), (112, 169470), (120, 158172), (126, 150640), (140, 135576), (144, 131810), (147, 129120), (160, 118629), (168, 112980), (180, 105448), (196, 96840), (210, 90384), (224, 84735), (240, 79086), (245, 77472), (252, 75320), (269, 70560), (280, 67788), (288, 65905), (294, 64560), (315, 60256), (336, 56490), (360, 52724), (392, 48420), (420, 45192), (441, 43040), (480, 39543), (490, 38736), (504, 37660), (538, 35280), (560, 33894), (588, 32280), (630, 30128), (672, 28245), (720, 26362), (735, 25824), (784, 24210), (807, 23520), (840, 22596), (882, 21520), (980, 19368), (1008, 18830), (1076, 17640), (1120, 16947), (1176, 16140), (1260, 15064), (1345, 14112), (1440, 13181), (1470, 12912), (1568, 12105), (1614, 11760), (1680, 11298), (1764, 10760), (1883, 10080), (1960, 9684), (2016, 9415), (2152, 8820), (2205, 8608), (2352, 8070), (2421, 7840), (2520, 7532), (2690, 7056), (2940, 6456), (3228, 5880), (3360, 5649), (3528, 5380), (3766, 5040), (3920, 4842), (4035, 4704), (4304, 4410)]