20308080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:335

約数の個数: 160

約数和(自身を含む): 70995456

約数和(自身を除く): 50687376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 104, 115, 120, 130, 138, 156, 184, 195, 208, 230, 240, 260, 276, 283, 299, 312, 345, 368, 390, 460, 520, 552, 566, 598, 624, 690, 780, 849, 897, 920, 1040, 1104, 1132, 1196, 1380, 1415, 1495, 1560, 1698, 1794, 1840, 2264, 2392, 2760, 2830, 2990, 3120, 3396, 3588, 3679, 4245, 4485, 4528, 4784, 5520, 5660, 5980, 6509, 6792, 7176, 7358, 8490, 8970, 11037, 11320, 11960, 13018, 13584, 14352, 14716, 16980, 17940, 18395, 19527, 22074, 22640, 23920, 26036, 29432, 32545, 33960, 35880, 36790, 39054, 44148, 52072, 55185, 58864, 65090, 67920, 71760, 73580, 78108, 84617, 88296, 97635, 104144, 110370, 130180, 147160, 156216, 169234, 176592, 195270, 220740, 253851, 260360, 294320, 312432, 338468, 390540, 423085, 441480, 507702, 520720, 676936, 781080, 846170, 882960, 1015404, 1269255, 1353872, 1562160, 1692340, 2030808, 2538510, 3384680, 4061616, 5077020, 6769360, 10154040, 20308080]

約数ペア:

[(1, 20308080), (2, 10154040), (3, 6769360), (4, 5077020), (5, 4061616), (6, 3384680), (8, 2538510), (10, 2030808), (12, 1692340), (13, 1562160), (15, 1353872), (16, 1269255), (20, 1015404), (23, 882960), (24, 846170), (26, 781080), (30, 676936), (39, 520720), (40, 507702), (46, 441480), (48, 423085), (52, 390540), (60, 338468), (65, 312432), (69, 294320), (78, 260360), (80, 253851), (92, 220740), (104, 195270), (115, 176592), (120, 169234), (130, 156216), (138, 147160), (156, 130180), (184, 110370), (195, 104144), (208, 97635), (230, 88296), (240, 84617), (260, 78108), (276, 73580), (283, 71760), (299, 67920), (312, 65090), (345, 58864), (368, 55185), (390, 52072), (460, 44148), (520, 39054), (552, 36790), (566, 35880), (598, 33960), (624, 32545), (690, 29432), (780, 26036), (849, 23920), (897, 22640), (920, 22074), (1040, 19527), (1104, 18395), (1132, 17940), (1196, 16980), (1380, 14716), (1415, 14352), (1495, 13584), (1560, 13018), (1698, 11960), (1794, 11320), (1840, 11037), (2264, 8970), (2392, 8490), (2760, 7358), (2830, 7176), (2990, 6792), (3120, 6509), (3396, 5980), (3588, 5660), (3679, 5520), (4245, 4784), (4485, 4528)]