66676480

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4007}}^1$

素因数の和:4041

約数の個数: 72

約数和(自身を含む): 172039392

約数和(自身を除く): 105362912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4007, 4160, 8014, 8320, 16028, 16640, 20035, 32056, 40070, 52091, 64112, 80140, 104182, 128224, 160280, 208364, 256448, 260455, 320560, 416728, 512896, 520910, 641120, 833456, 1025792, 1041820, 1282240, 1666912, 2083640, 2564480, 3333824, 4167280, 5128960, 6667648, 8334560, 13335296, 16669120, 33338240, 66676480]

約数ペア:

[(1, 66676480), (2, 33338240), (4, 16669120), (5, 13335296), (8, 8334560), (10, 6667648), (13, 5128960), (16, 4167280), (20, 3333824), (26, 2564480), (32, 2083640), (40, 1666912), (52, 1282240), (64, 1041820), (65, 1025792), (80, 833456), (104, 641120), (128, 520910), (130, 512896), (160, 416728), (208, 320560), (256, 260455), (260, 256448), (320, 208364), (416, 160280), (520, 128224), (640, 104182), (832, 80140), (1040, 64112), (1280, 52091), (1664, 40070), (2080, 32056), (3328, 20035), (4007, 16640), (4160, 16028), (8014, 8320)]