387745280

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:288

約数の個数: 160

約数和(自身を含む): 1022934528

約数和(自身を除く): 635189248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 128, 130, 160, 191, 208, 244, 256, 260, 305, 320, 382, 416, 488, 512, 520, 610, 640, 764, 793, 832, 955, 976, 1040, 1220, 1280, 1528, 1586, 1664, 1910, 1952, 2080, 2440, 2483, 2560, 3056, 3172, 3328, 3820, 3904, 3965, 4160, 4880, 4966, 6112, 6344, 6656, 7640, 7808, 7930, 8320, 9760, 9932, 11651, 12224, 12415, 12688, 15280, 15616, 15860, 16640, 19520, 19864, 23302, 24448, 24830, 25376, 30560, 31232, 31720, 33280, 39040, 39728, 46604, 48896, 49660, 50752, 58255, 61120, 63440, 78080, 79456, 93208, 97792, 99320, 101504, 116510, 122240, 126880, 151463, 156160, 158912, 186416, 198640, 203008, 233020, 244480, 253760, 302926, 317824, 372832, 397280, 406016, 466040, 488960, 507520, 605852, 635648, 745664, 757315, 794560, 932080, 1015040, 1211704, 1271296, 1491328, 1514630, 1589120, 1864160, 2030080, 2423408, 2982656, 3029260, 3178240, 3728320, 4846816, 5965312, 6058520, 6356480, 7456640, 9693632, 12117040, 14913280, 19387264, 24234080, 29826560, 38774528, 48468160, 77549056, 96936320, 193872640, 387745280]

約数ペア:

[(1, 387745280), (2, 193872640), (4, 96936320), (5, 77549056), (8, 48468160), (10, 38774528), (13, 29826560), (16, 24234080), (20, 19387264), (26, 14913280), (32, 12117040), (40, 9693632), (52, 7456640), (61, 6356480), (64, 6058520), (65, 5965312), (80, 4846816), (104, 3728320), (122, 3178240), (128, 3029260), (130, 2982656), (160, 2423408), (191, 2030080), (208, 1864160), (244, 1589120), (256, 1514630), (260, 1491328), (305, 1271296), (320, 1211704), (382, 1015040), (416, 932080), (488, 794560), (512, 757315), (520, 745664), (610, 635648), (640, 605852), (764, 507520), (793, 488960), (832, 466040), (955, 406016), (976, 397280), (1040, 372832), (1220, 317824), (1280, 302926), (1528, 253760), (1586, 244480), (1664, 233020), (1910, 203008), (1952, 198640), (2080, 186416), (2440, 158912), (2483, 156160), (2560, 151463), (3056, 126880), (3172, 122240), (3328, 116510), (3820, 101504), (3904, 99320), (3965, 97792), (4160, 93208), (4880, 79456), (4966, 78080), (6112, 63440), (6344, 61120), (6656, 58255), (7640, 50752), (7808, 49660), (7930, 48896), (8320, 46604), (9760, 39728), (9932, 39040), (11651, 33280), (12224, 31720), (12415, 31232), (12688, 30560), (15280, 25376), (15616, 24830), (15860, 24448), (16640, 23302), (19520, 19864)]