221818920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:663

約数の個数: 128

約数和(自身を含む): 705024000

約数和(自身を除く): 483205080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 271, 285, 359, 380, 456, 542, 570, 718, 760, 813, 1077, 1084, 1140, 1355, 1436, 1626, 1795, 2154, 2168, 2280, 2710, 2872, 3252, 3590, 4065, 4308, 5149, 5385, 5420, 6504, 6821, 7180, 8130, 8616, 10298, 10770, 10840, 13642, 14360, 15447, 16260, 20463, 20596, 21540, 25745, 27284, 30894, 32520, 34105, 40926, 41192, 43080, 51490, 54568, 61788, 68210, 77235, 81852, 97289, 102315, 102980, 123576, 136420, 154470, 163704, 194578, 204630, 205960, 272840, 291867, 308940, 389156, 409260, 486445, 583734, 617880, 778312, 818520, 972890, 1167468, 1459335, 1848491, 1945780, 2334936, 2918670, 3696982, 3891560, 5545473, 5837340, 7393964, 9242455, 11090946, 11674680, 14787928, 18484910, 22181892, 27727365, 36969820, 44363784, 55454730, 73939640, 110909460, 221818920]

約数ペア:

[(1, 221818920), (2, 110909460), (3, 73939640), (4, 55454730), (5, 44363784), (6, 36969820), (8, 27727365), (10, 22181892), (12, 18484910), (15, 14787928), (19, 11674680), (20, 11090946), (24, 9242455), (30, 7393964), (38, 5837340), (40, 5545473), (57, 3891560), (60, 3696982), (76, 2918670), (95, 2334936), (114, 1945780), (120, 1848491), (152, 1459335), (190, 1167468), (228, 972890), (271, 818520), (285, 778312), (359, 617880), (380, 583734), (456, 486445), (542, 409260), (570, 389156), (718, 308940), (760, 291867), (813, 272840), (1077, 205960), (1084, 204630), (1140, 194578), (1355, 163704), (1436, 154470), (1626, 136420), (1795, 123576), (2154, 102980), (2168, 102315), (2280, 97289), (2710, 81852), (2872, 77235), (3252, 68210), (3590, 61788), (4065, 54568), (4308, 51490), (5149, 43080), (5385, 41192), (5420, 40926), (6504, 34105), (6821, 32520), (7180, 30894), (8130, 27284), (8616, 25745), (10298, 21540), (10770, 20596), (10840, 20463), (13642, 16260), (14360, 15447)]