66855680

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2789

約数の個数: 72

約数和(自身を含む): 168630000

約数和(自身を除く): 101774320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 2749, 3040, 4864, 5498, 6080, 10996, 12160, 13745, 21992, 24320, 27490, 43984, 52231, 54980, 87968, 104462, 109960, 175936, 208924, 219920, 261155, 351872, 417848, 439840, 522310, 703744, 835696, 879680, 1044620, 1671392, 1759360, 2089240, 3342784, 3518720, 4178480, 6685568, 8356960, 13371136, 16713920, 33427840, 66855680]

約数ペア:

[(1, 66855680), (2, 33427840), (4, 16713920), (5, 13371136), (8, 8356960), (10, 6685568), (16, 4178480), (19, 3518720), (20, 3342784), (32, 2089240), (38, 1759360), (40, 1671392), (64, 1044620), (76, 879680), (80, 835696), (95, 703744), (128, 522310), (152, 439840), (160, 417848), (190, 351872), (256, 261155), (304, 219920), (320, 208924), (380, 175936), (608, 109960), (640, 104462), (760, 87968), (1216, 54980), (1280, 52231), (1520, 43984), (2432, 27490), (2749, 24320), (3040, 21992), (4864, 13745), (5498, 12160), (6080, 10996)]