21536640

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3739}}^1$

素因数の和:3764

約数の個数: 96

約数和(自身を含む): 74388600

約数和(自身を除く): 52851960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 3739, 5760, 7478, 11217, 14956, 18695, 22434, 29912, 33651, 37390, 44868, 56085, 59824, 67302, 74780, 89736, 112170, 119648, 134604, 149560, 168255, 179472, 224340, 239296, 269208, 299120, 336510, 358944, 448680, 478592, 538416, 598240, 673020, 717888, 897360, 1076832, 1196480, 1346040, 1435776, 1794720, 2153664, 2392960, 2692080, 3589440, 4307328, 5384160, 7178880, 10768320, 21536640]

約数ペア:

[(1, 21536640), (2, 10768320), (3, 7178880), (4, 5384160), (5, 4307328), (6, 3589440), (8, 2692080), (9, 2392960), (10, 2153664), (12, 1794720), (15, 1435776), (16, 1346040), (18, 1196480), (20, 1076832), (24, 897360), (30, 717888), (32, 673020), (36, 598240), (40, 538416), (45, 478592), (48, 448680), (60, 358944), (64, 336510), (72, 299120), (80, 269208), (90, 239296), (96, 224340), (120, 179472), (128, 168255), (144, 149560), (160, 134604), (180, 119648), (192, 112170), (240, 89736), (288, 74780), (320, 67302), (360, 59824), (384, 56085), (480, 44868), (576, 37390), (640, 33651), (720, 29912), (960, 22434), (1152, 18695), (1440, 14956), (1920, 11217), (2880, 7478), (3739, 5760)]