21670560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 144

約数和(自身を含む): 75184200

約数和(自身を除く): 53513640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 101, 120, 144, 149, 160, 180, 202, 240, 288, 298, 303, 360, 404, 447, 480, 505, 596, 606, 720, 745, 808, 894, 909, 1010, 1192, 1212, 1341, 1440, 1490, 1515, 1616, 1788, 1818, 2020, 2235, 2384, 2424, 2682, 2980, 3030, 3232, 3576, 3636, 4040, 4470, 4545, 4768, 4848, 5364, 5960, 6060, 6705, 7152, 7272, 8080, 8940, 9090, 9696, 10728, 11920, 12120, 13410, 14304, 14544, 15049, 16160, 17880, 18180, 21456, 23840, 24240, 26820, 29088, 30098, 35760, 36360, 42912, 45147, 48480, 53640, 60196, 71520, 72720, 75245, 90294, 107280, 120392, 135441, 145440, 150490, 180588, 214560, 225735, 240784, 270882, 300980, 361176, 451470, 481568, 541764, 601960, 677205, 722352, 902940, 1083528, 1203920, 1354410, 1444704, 1805880, 2167056, 2407840, 2708820, 3611760, 4334112, 5417640, 7223520, 10835280, 21670560]

約数ペア:

[(1, 21670560), (2, 10835280), (3, 7223520), (4, 5417640), (5, 4334112), (6, 3611760), (8, 2708820), (9, 2407840), (10, 2167056), (12, 1805880), (15, 1444704), (16, 1354410), (18, 1203920), (20, 1083528), (24, 902940), (30, 722352), (32, 677205), (36, 601960), (40, 541764), (45, 481568), (48, 451470), (60, 361176), (72, 300980), (80, 270882), (90, 240784), (96, 225735), (101, 214560), (120, 180588), (144, 150490), (149, 145440), (160, 135441), (180, 120392), (202, 107280), (240, 90294), (288, 75245), (298, 72720), (303, 71520), (360, 60196), (404, 53640), (447, 48480), (480, 45147), (505, 42912), (596, 36360), (606, 35760), (720, 30098), (745, 29088), (808, 26820), (894, 24240), (909, 23840), (1010, 21456), (1192, 18180), (1212, 17880), (1341, 16160), (1440, 15049), (1490, 14544), (1515, 14304), (1616, 13410), (1788, 12120), (1818, 11920), (2020, 10728), (2235, 9696), (2384, 9090), (2424, 8940), (2682, 8080), (2980, 7272), (3030, 7152), (3232, 6705), (3576, 6060), (3636, 5960), (4040, 5364), (4470, 4848), (4545, 4768)]