21477600

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:202

約数の個数: 216

約数和(自身を含む): 80229240

約数和(自身を除く): 58751640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 30, 32, 36, 38, 40, 45, 48, 50, 57, 60, 72, 75, 76, 80, 90, 95, 96, 100, 114, 120, 144, 150, 152, 157, 160, 171, 180, 190, 200, 225, 228, 240, 285, 288, 300, 304, 314, 342, 360, 380, 400, 450, 456, 471, 475, 480, 570, 600, 608, 628, 684, 720, 760, 785, 800, 855, 900, 912, 942, 950, 1140, 1200, 1256, 1368, 1413, 1425, 1440, 1520, 1570, 1710, 1800, 1824, 1884, 1900, 2280, 2355, 2400, 2512, 2736, 2826, 2850, 2983, 3040, 3140, 3420, 3600, 3768, 3800, 3925, 4275, 4560, 4710, 5024, 5472, 5652, 5700, 5966, 6280, 6840, 7065, 7200, 7536, 7600, 7850, 8550, 8949, 9120, 9420, 11304, 11400, 11775, 11932, 12560, 13680, 14130, 14915, 15072, 15200, 15700, 17100, 17898, 18840, 22608, 22800, 23550, 23864, 25120, 26847, 27360, 28260, 29830, 31400, 34200, 35325, 35796, 37680, 44745, 45216, 45600, 47100, 47728, 53694, 56520, 59660, 62800, 68400, 70650, 71592, 74575, 75360, 89490, 94200, 95456, 107388, 113040, 119320, 125600, 134235, 136800, 141300, 143184, 149150, 178980, 188400, 214776, 223725, 226080, 238640, 268470, 282600, 286368, 298300, 357960, 376800, 429552, 447450, 477280, 536940, 565200, 596600, 671175, 715920, 859104, 894900, 1073880, 1130400, 1193200, 1342350, 1431840, 1789800, 2147760, 2386400, 2684700, 3579600, 4295520, 5369400, 7159200, 10738800, 21477600]

約数ペア:

[(1, 21477600), (2, 10738800), (3, 7159200), (4, 5369400), (5, 4295520), (6, 3579600), (8, 2684700), (9, 2386400), (10, 2147760), (12, 1789800), (15, 1431840), (16, 1342350), (18, 1193200), (19, 1130400), (20, 1073880), (24, 894900), (25, 859104), (30, 715920), (32, 671175), (36, 596600), (38, 565200), (40, 536940), (45, 477280), (48, 447450), (50, 429552), (57, 376800), (60, 357960), (72, 298300), (75, 286368), (76, 282600), (80, 268470), (90, 238640), (95, 226080), (96, 223725), (100, 214776), (114, 188400), (120, 178980), (144, 149150), (150, 143184), (152, 141300), (157, 136800), (160, 134235), (171, 125600), (180, 119320), (190, 113040), (200, 107388), (225, 95456), (228, 94200), (240, 89490), (285, 75360), (288, 74575), (300, 71592), (304, 70650), (314, 68400), (342, 62800), (360, 59660), (380, 56520), (400, 53694), (450, 47728), (456, 47100), (471, 45600), (475, 45216), (480, 44745), (570, 37680), (600, 35796), (608, 35325), (628, 34200), (684, 31400), (720, 29830), (760, 28260), (785, 27360), (800, 26847), (855, 25120), (900, 23864), (912, 23550), (942, 22800), (950, 22608), (1140, 18840), (1200, 17898), (1256, 17100), (1368, 15700), (1413, 15200), (1425, 15072), (1440, 14915), (1520, 14130), (1570, 13680), (1710, 12560), (1800, 11932), (1824, 11775), (1884, 11400), (1900, 11304), (2280, 9420), (2355, 9120), (2400, 8949), (2512, 8550), (2736, 7850), (2826, 7600), (2850, 7536), (2983, 7200), (3040, 7065), (3140, 6840), (3420, 6280), (3600, 5966), (3768, 5700), (3800, 5652), (3925, 5472), (4275, 5024), (4560, 4710)]