2021163293520

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{16649}}^1$

素因数の和:16753

約数の個数: 960

約数和(自身を含む): 8586093312000

約数和(自身を除く): 6564930018480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 37, 40, 42, 45, 48, 49, 54, 56, 60, 62, 63, 70, 72, 74, 80, 84, 90, 93, 98, 105, 108, 111, 112, 120, 124, 126, 135, 140, 144, 147, 148, 155, 168, 180, 185, 186, 189, 196, 210, 216, 217, 222, 240, 245, 248, 252, 259, 270, 279, 280, 294, 296, 310, 315, 333, 336, 360, 370, 372, 378, 392, 420, 432, 434, 441, 444, 465, 490, 496, 504, 518, 540, 555, 558, 560, 588, 592, 620, 630, 651, 666, 720, 735, 740, 744, 756, 777, 784, 837, 840, 868, 882, 888, 930, 945, 980, 999, 1008, 1036, 1080, 1085, 1110, 1116, 1147, 1176, 1240, 1260, 1295, 1302, 1323, 1332, 1395, 1470, 1480, 1488, 1512, 1519, 1554, 1665, 1674, 1680, 1736, 1764, 1776, 1813, 1860, 1890, 1953, 1960, 1998, 2072, 2160, 2170, 2205, 2220, 2232, 2294, 2331, 2352, 2480, 2520, 2590, 2604, 2646, 2664, 2790, 2940, 2960, 3024, 3038, 3108, 3255, 3330, 3348, 3441, 3472, 3528, 3626, 3720, 3780, 3885, 3906, 3920, 3996, 4144, 4185, 4340, 4410, 4440, 4464, 4557, 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約数ペア:

[(1, 2021163293520), (2, 1010581646760), (3, 673721097840), (4, 505290823380), (5, 404232658704), (6, 336860548920), (7, 288737613360), (8, 252645411690), (9, 224573699280), (10, 202116329352), (12, 168430274460), (14, 144368806680), (15, 134744219568), (16, 126322705845), (18, 112286849640), (20, 101058164676), (21, 96245871120), (24, 84215137230), (27, 74857899760), (28, 72184403340), (30, 67372109784), (31, 65198815920), (35, 57747522672), (36, 56143424820), (37, 54626034960), (40, 50529082338), (42, 48122935560), (45, 44914739856), (48, 42107568615), (49, 41248230480), (54, 37428949880), (56, 36092201670), (60, 33686054892), (62, 32599407960), (63, 32081957040), (70, 28873761336), (72, 28071712410), (74, 27313017480), (80, 25264541169), (84, 24061467780), (90, 22457369928), (93, 21732938640), (98, 20624115240), (105, 19249174224), (108, 18714474940), (111, 18208678320), (112, 18046100835), (120, 16843027446), (124, 16299703980), (126, 16040978520), (135, 14971579952), (140, 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(1011654, 1997880), (1032238, 1958040), (1048887, 1926960), (1083915, 1864688), (1093680, 1848039), (1124060, 1798092), (1156176, 1748145), (1165430, 1734264), (1198728, 1686090), (1232026, 1640520), (1238760, 1631602), (1305360, 1548357), (1331920, 1517481), (1348872, 1498410), (1398516, 1445220)]