77881960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:359

約数の個数: 96

約数和(自身を含む): 195070680

約数和(自身を除く): 117188720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 169, 205, 260, 281, 328, 338, 410, 520, 533, 562, 676, 820, 845, 1066, 1124, 1352, 1405, 1640, 1690, 2132, 2248, 2665, 2810, 3380, 3653, 4264, 5330, 5620, 6760, 6929, 7306, 10660, 11240, 11521, 13858, 14612, 18265, 21320, 23042, 27716, 29224, 34645, 36530, 46084, 47489, 55432, 57605, 69290, 73060, 92168, 94978, 115210, 138580, 146120, 149773, 189956, 230420, 237445, 277160, 299546, 379912, 460840, 474890, 599092, 748865, 949780, 1198184, 1497730, 1899560, 1947049, 2995460, 3894098, 5990920, 7788196, 9735245, 15576392, 19470490, 38940980, 77881960]

約数ペア:

[(1, 77881960), (2, 38940980), (4, 19470490), (5, 15576392), (8, 9735245), (10, 7788196), (13, 5990920), (20, 3894098), (26, 2995460), (40, 1947049), (41, 1899560), (52, 1497730), (65, 1198184), (82, 949780), (104, 748865), (130, 599092), (164, 474890), (169, 460840), (205, 379912), (260, 299546), (281, 277160), (328, 237445), (338, 230420), (410, 189956), (520, 149773), (533, 146120), (562, 138580), (676, 115210), (820, 94978), (845, 92168), (1066, 73060), (1124, 69290), (1352, 57605), (1405, 55432), (1640, 47489), (1690, 46084), (2132, 36530), (2248, 34645), (2665, 29224), (2810, 27716), (3380, 23042), (3653, 21320), (4264, 18265), (5330, 14612), (5620, 13858), (6760, 11521), (6929, 11240), (7306, 10660)]