20103120

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:290

約数の個数: 160

約数和(自身を含む): 71245440

約数和(自身を除く): 51142320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 41, 45, 48, 54, 60, 72, 80, 82, 90, 108, 120, 123, 135, 144, 164, 180, 205, 216, 227, 240, 246, 270, 328, 360, 369, 410, 432, 454, 492, 540, 615, 656, 681, 720, 738, 820, 908, 984, 1080, 1107, 1135, 1230, 1362, 1476, 1640, 1816, 1845, 1968, 2043, 2160, 2214, 2270, 2460, 2724, 2952, 3280, 3405, 3632, 3690, 4086, 4428, 4540, 4920, 5448, 5535, 5904, 6129, 6810, 7380, 8172, 8856, 9080, 9307, 9840, 10215, 10896, 11070, 12258, 13620, 14760, 16344, 17712, 18160, 18614, 20430, 22140, 24516, 27240, 27921, 29520, 30645, 32688, 37228, 40860, 44280, 46535, 49032, 54480, 55842, 61290, 74456, 81720, 83763, 88560, 93070, 98064, 111684, 122580, 139605, 148912, 163440, 167526, 186140, 223368, 245160, 251289, 279210, 335052, 372280, 418815, 446736, 490320, 502578, 558420, 670104, 744560, 837630, 1005156, 1116840, 1256445, 1340208, 1675260, 2010312, 2233680, 2512890, 3350520, 4020624, 5025780, 6701040, 10051560, 20103120]

約数ペア:

[(1, 20103120), (2, 10051560), (3, 6701040), (4, 5025780), (5, 4020624), (6, 3350520), (8, 2512890), (9, 2233680), (10, 2010312), (12, 1675260), (15, 1340208), (16, 1256445), (18, 1116840), (20, 1005156), (24, 837630), (27, 744560), (30, 670104), (36, 558420), (40, 502578), (41, 490320), (45, 446736), (48, 418815), (54, 372280), (60, 335052), (72, 279210), (80, 251289), (82, 245160), (90, 223368), (108, 186140), (120, 167526), (123, 163440), (135, 148912), (144, 139605), (164, 122580), (180, 111684), (205, 98064), (216, 93070), (227, 88560), (240, 83763), (246, 81720), (270, 74456), (328, 61290), (360, 55842), (369, 54480), (410, 49032), (432, 46535), (454, 44280), (492, 40860), (540, 37228), (615, 32688), (656, 30645), (681, 29520), (720, 27921), (738, 27240), (820, 24516), (908, 22140), (984, 20430), (1080, 18614), (1107, 18160), (1135, 17712), (1230, 16344), (1362, 14760), (1476, 13620), (1640, 12258), (1816, 11070), (1845, 10896), (1968, 10215), (2043, 9840), (2160, 9307), (2214, 9080), (2270, 8856), (2460, 8172), (2724, 7380), (2952, 6810), (3280, 6129), (3405, 5904), (3632, 5535), (3690, 5448), (4086, 4920), (4428, 4540)]