20969160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:591

約数の個数: 128

約数和(自身を含む): 70243200

約数和(自身を除く): 49274040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 51, 57, 60, 68, 76, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 255, 285, 323, 340, 380, 408, 456, 510, 541, 570, 646, 680, 760, 969, 1020, 1082, 1140, 1292, 1615, 1623, 1938, 2040, 2164, 2280, 2584, 2705, 3230, 3246, 3876, 4328, 4845, 5410, 6460, 6492, 7752, 8115, 9197, 9690, 10279, 10820, 12920, 12984, 16230, 18394, 19380, 20558, 21640, 27591, 30837, 32460, 36788, 38760, 41116, 45985, 51395, 55182, 61674, 64920, 73576, 82232, 91970, 102790, 110364, 123348, 137955, 154185, 174743, 183940, 205580, 220728, 246696, 275910, 308370, 349486, 367880, 411160, 524229, 551820, 616740, 698972, 873715, 1048458, 1103640, 1233480, 1397944, 1747430, 2096916, 2621145, 3494860, 4193832, 5242290, 6989720, 10484580, 20969160]

約数ペア:

[(1, 20969160), (2, 10484580), (3, 6989720), (4, 5242290), (5, 4193832), (6, 3494860), (8, 2621145), (10, 2096916), (12, 1747430), (15, 1397944), (17, 1233480), (19, 1103640), (20, 1048458), (24, 873715), (30, 698972), (34, 616740), (38, 551820), (40, 524229), (51, 411160), (57, 367880), (60, 349486), (68, 308370), (76, 275910), (85, 246696), (95, 220728), (102, 205580), (114, 183940), (120, 174743), (136, 154185), (152, 137955), (170, 123348), (190, 110364), (204, 102790), (228, 91970), (255, 82232), (285, 73576), (323, 64920), (340, 61674), (380, 55182), (408, 51395), (456, 45985), (510, 41116), (541, 38760), (570, 36788), (646, 32460), (680, 30837), (760, 27591), (969, 21640), (1020, 20558), (1082, 19380), (1140, 18394), (1292, 16230), (1615, 12984), (1623, 12920), (1938, 10820), (2040, 10279), (2164, 9690), (2280, 9197), (2584, 8115), (2705, 7752), (3230, 6492), (3246, 6460), (3876, 5410), (4328, 4845)]