20388888

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 128

約数和(自身を含む): 62596800

約数和(自身を除く): 42207912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 53, 54, 72, 78, 104, 106, 108, 117, 137, 156, 159, 212, 216, 234, 274, 312, 318, 351, 411, 424, 468, 477, 548, 636, 689, 702, 822, 936, 954, 1096, 1233, 1272, 1378, 1404, 1431, 1644, 1781, 1908, 2067, 2466, 2756, 2808, 2862, 3288, 3562, 3699, 3816, 4134, 4932, 5343, 5512, 5724, 6201, 7124, 7261, 7398, 8268, 9864, 10686, 11448, 12402, 14248, 14522, 14796, 16029, 16536, 18603, 21372, 21783, 24804, 29044, 29592, 32058, 37206, 42744, 43566, 48087, 49608, 58088, 64116, 65349, 74412, 87132, 94393, 96174, 128232, 130698, 148824, 174264, 188786, 192348, 196047, 261396, 283179, 377572, 384696, 392094, 522792, 566358, 755144, 784188, 849537, 1132716, 1568376, 1699074, 2265432, 2548611, 3398148, 5097222, 6796296, 10194444, 20388888]

約数ペア:

[(1, 20388888), (2, 10194444), (3, 6796296), (4, 5097222), (6, 3398148), (8, 2548611), (9, 2265432), (12, 1699074), (13, 1568376), (18, 1132716), (24, 849537), (26, 784188), (27, 755144), (36, 566358), (39, 522792), (52, 392094), (53, 384696), (54, 377572), (72, 283179), (78, 261396), (104, 196047), (106, 192348), (108, 188786), (117, 174264), (137, 148824), (156, 130698), (159, 128232), (212, 96174), (216, 94393), (234, 87132), (274, 74412), (312, 65349), (318, 64116), (351, 58088), (411, 49608), (424, 48087), (468, 43566), (477, 42744), (548, 37206), (636, 32058), (689, 29592), (702, 29044), (822, 24804), (936, 21783), (954, 21372), (1096, 18603), (1233, 16536), (1272, 16029), (1378, 14796), (1404, 14522), (1431, 14248), (1644, 12402), (1781, 11448), (1908, 10686), (2067, 9864), (2466, 8268), (2756, 7398), (2808, 7261), (2862, 7124), (3288, 6201), (3562, 5724), (3699, 5512), (3816, 5343), (4134, 4932)]