21000836320

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{769}}^1$

素因数の和:1029

約数の個数: 192

約数和(自身を含む): 53396703360

約数和(自身を除く): 32395867040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 41, 46, 80, 82, 92, 115, 160, 164, 181, 184, 205, 230, 328, 362, 368, 410, 460, 656, 724, 736, 769, 820, 905, 920, 943, 1312, 1448, 1538, 1640, 1810, 1840, 1886, 2896, 3076, 3280, 3620, 3680, 3772, 3845, 4163, 4715, 5792, 6152, 6560, 7240, 7421, 7544, 7690, 8326, 9430, 12304, 14480, 14842, 15088, 15380, 16652, 17687, 18860, 20815, 24608, 28960, 29684, 30176, 30760, 31529, 33304, 35374, 37105, 37720, 41630, 59368, 61520, 63058, 66608, 70748, 74210, 75440, 83260, 88435, 118736, 123040, 126116, 133216, 139189, 141496, 148420, 150880, 157645, 166520, 170683, 176870, 237472, 252232, 278378, 282992, 296840, 315290, 333040, 341366, 353740, 504464, 556756, 565984, 593680, 630580, 666080, 682732, 695945, 707480, 725167, 853415, 1008928, 1113512, 1187360, 1261160, 1365464, 1391890, 1414960, 1450334, 1706830, 2227024, 2522320, 2730928, 2783780, 2829920, 2900668, 3201347, 3413660, 3625835, 4454048, 5044640, 5461856, 5567560, 5706749, 5801336, 6402694, 6827320, 7251670, 11135120, 11413498, 11602672, 12805388, 13654640, 14503340, 16006735, 22270240, 22826996, 23205344, 25610776, 27309280, 28533745, 29006680, 32013470, 45653992, 51221552, 57067490, 58013360, 64026940, 91307984, 102443104, 114134980, 116026720, 128053880, 131255227, 182615968, 228269960, 256107760, 262510454, 456539920, 512215520, 525020908, 656276135, 913079840, 1050041816, 1312552270, 2100083632, 2625104540, 4200167264, 5250209080, 10500418160, 21000836320]

約数ペア:

[(1, 21000836320), (2, 10500418160), (4, 5250209080), (5, 4200167264), (8, 2625104540), (10, 2100083632), (16, 1312552270), (20, 1050041816), (23, 913079840), (32, 656276135), (40, 525020908), (41, 512215520), (46, 456539920), (80, 262510454), (82, 256107760), (92, 228269960), (115, 182615968), (160, 131255227), (164, 128053880), (181, 116026720), (184, 114134980), (205, 102443104), (230, 91307984), (328, 64026940), (362, 58013360), (368, 57067490), (410, 51221552), (460, 45653992), (656, 32013470), (724, 29006680), (736, 28533745), (769, 27309280), (820, 25610776), (905, 23205344), (920, 22826996), (943, 22270240), (1312, 16006735), (1448, 14503340), (1538, 13654640), (1640, 12805388), (1810, 11602672), (1840, 11413498), (1886, 11135120), (2896, 7251670), (3076, 6827320), (3280, 6402694), (3620, 5801336), (3680, 5706749), (3772, 5567560), (3845, 5461856), (4163, 5044640), (4715, 4454048), (5792, 3625835), (6152, 3413660), (6560, 3201347), (7240, 2900668), (7421, 2829920), (7544, 2783780), (7690, 2730928), (8326, 2522320), (9430, 2227024), (12304, 1706830), (14480, 1450334), (14842, 1414960), (15088, 1391890), (15380, 1365464), (16652, 1261160), (17687, 1187360), (18860, 1113512), (20815, 1008928), (24608, 853415), (28960, 725167), (29684, 707480), (30176, 695945), (30760, 682732), (31529, 666080), (33304, 630580), (35374, 593680), (37105, 565984), (37720, 556756), (41630, 504464), (59368, 353740), (61520, 341366), (63058, 333040), (66608, 315290), (70748, 296840), (74210, 282992), (75440, 278378), (83260, 252232), (88435, 237472), (118736, 176870), (123040, 170683), (126116, 166520), (133216, 157645), (139189, 150880), (141496, 148420)]