21412080

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 160

約数和(自身を含む): 77137920

約数和(自身を除く): 55725840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 90, 92, 108, 115, 120, 135, 138, 144, 180, 184, 207, 216, 230, 240, 270, 276, 345, 360, 368, 414, 431, 432, 460, 540, 552, 621, 690, 720, 828, 862, 920, 1035, 1080, 1104, 1242, 1293, 1380, 1656, 1724, 1840, 2070, 2155, 2160, 2484, 2586, 2760, 3105, 3312, 3448, 3879, 4140, 4310, 4968, 5172, 5520, 6210, 6465, 6896, 7758, 8280, 8620, 9913, 9936, 10344, 11637, 12420, 12930, 15516, 16560, 17240, 19395, 19826, 20688, 23274, 24840, 25860, 29739, 31032, 34480, 38790, 39652, 46548, 49565, 49680, 51720, 58185, 59478, 62064, 77580, 79304, 89217, 93096, 99130, 103440, 116370, 118956, 148695, 155160, 158608, 178434, 186192, 198260, 232740, 237912, 267651, 297390, 310320, 356868, 396520, 446085, 465480, 475824, 535302, 594780, 713736, 793040, 892170, 930960, 1070604, 1189560, 1338255, 1427472, 1784340, 2141208, 2379120, 2676510, 3568680, 4282416, 5353020, 7137360, 10706040, 21412080]

約数ペア:

[(1, 21412080), (2, 10706040), (3, 7137360), (4, 5353020), (5, 4282416), (6, 3568680), (8, 2676510), (9, 2379120), (10, 2141208), (12, 1784340), (15, 1427472), (16, 1338255), (18, 1189560), (20, 1070604), (23, 930960), (24, 892170), (27, 793040), (30, 713736), (36, 594780), (40, 535302), (45, 475824), (46, 465480), (48, 446085), (54, 396520), (60, 356868), (69, 310320), (72, 297390), (80, 267651), (90, 237912), (92, 232740), (108, 198260), (115, 186192), (120, 178434), (135, 158608), (138, 155160), (144, 148695), (180, 118956), (184, 116370), (207, 103440), (216, 99130), (230, 93096), (240, 89217), (270, 79304), (276, 77580), (345, 62064), (360, 59478), (368, 58185), (414, 51720), (431, 49680), (432, 49565), (460, 46548), (540, 39652), (552, 38790), (621, 34480), (690, 31032), (720, 29739), (828, 25860), (862, 24840), (920, 23274), (1035, 20688), (1080, 19826), (1104, 19395), (1242, 17240), (1293, 16560), (1380, 15516), (1656, 12930), (1724, 12420), (1840, 11637), (2070, 10344), (2155, 9936), (2160, 9913), (2484, 8620), (2586, 8280), (2760, 7758), (3105, 6896), (3312, 6465), (3448, 6210), (3879, 5520), (4140, 5172), (4310, 4968)]