20548710

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{193}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 66459744

約数和(自身を除く): 45911034

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 169, 182, 193, 195, 210, 234, 273, 315, 338, 386, 390, 455, 507, 546, 579, 585, 630, 819, 845, 910, 965, 1014, 1158, 1170, 1183, 1351, 1365, 1521, 1638, 1690, 1737, 1930, 2366, 2509, 2535, 2702, 2730, 2895, 3042, 3474, 3549, 4053, 4095, 5018, 5070, 5790, 5915, 6755, 7098, 7527, 7605, 8106, 8190, 8685, 10647, 11830, 12159, 12545, 13510, 15054, 15210, 17370, 17563, 17745, 20265, 21294, 22581, 24318, 25090, 32617, 35126, 35490, 37635, 40530, 45162, 52689, 53235, 60795, 65234, 75270, 87815, 97851, 105378, 106470, 112905, 121590, 158067, 163085, 175630, 195702, 225810, 228319, 263445, 293553, 316134, 326170, 456638, 489255, 526890, 587106, 684957, 790335, 978510, 1141595, 1369914, 1467765, 1580670, 2054871, 2283190, 2935530, 3424785, 4109742, 6849570, 10274355, 20548710]

約数ペア:

[(1, 20548710), (2, 10274355), (3, 6849570), (5, 4109742), (6, 3424785), (7, 2935530), (9, 2283190), (10, 2054871), (13, 1580670), (14, 1467765), (15, 1369914), (18, 1141595), (21, 978510), (26, 790335), (30, 684957), (35, 587106), (39, 526890), (42, 489255), (45, 456638), (63, 326170), (65, 316134), (70, 293553), (78, 263445), (90, 228319), (91, 225810), (105, 195702), (117, 175630), (126, 163085), (130, 158067), (169, 121590), (182, 112905), (193, 106470), (195, 105378), (210, 97851), (234, 87815), (273, 75270), (315, 65234), (338, 60795), (386, 53235), (390, 52689), (455, 45162), (507, 40530), (546, 37635), (579, 35490), (585, 35126), (630, 32617), (819, 25090), (845, 24318), (910, 22581), (965, 21294), (1014, 20265), (1158, 17745), (1170, 17563), (1183, 17370), (1351, 15210), (1365, 15054), (1521, 13510), (1638, 12545), (1690, 12159), (1737, 11830), (1930, 10647), (2366, 8685), (2509, 8190), (2535, 8106), (2702, 7605), (2730, 7527), (2895, 7098), (3042, 6755), (3474, 5915), (3549, 5790), (4053, 5070), (4095, 5018)]