81967410

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1453

約数の個数: 128

約数和(自身を含む): 258048000

約数和(自身を除く): 176080590

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 315, 378, 434, 465, 558, 630, 651, 837, 930, 945, 1085, 1302, 1395, 1399, 1674, 1890, 1953, 2170, 2790, 2798, 3255, 3906, 4185, 4197, 5859, 6510, 6995, 8370, 8394, 9765, 9793, 11718, 12591, 13990, 19530, 19586, 20985, 25182, 29295, 29379, 37773, 41970, 43369, 48965, 58590, 58758, 62955, 75546, 86738, 88137, 97930, 125910, 130107, 146895, 176274, 188865, 216845, 260214, 264411, 293790, 303583, 377730, 390321, 433690, 440685, 528822, 607166, 650535, 780642, 881370, 910749, 1170963, 1301070, 1322055, 1517915, 1821498, 1951605, 2341926, 2644110, 2732247, 3035830, 3903210, 4553745, 5464494, 5854815, 8196741, 9107490, 11709630, 13661235, 16393482, 27322470, 40983705, 81967410]

約数ペア:

[(1, 81967410), (2, 40983705), (3, 27322470), (5, 16393482), (6, 13661235), (7, 11709630), (9, 9107490), (10, 8196741), (14, 5854815), (15, 5464494), (18, 4553745), (21, 3903210), (27, 3035830), (30, 2732247), (31, 2644110), (35, 2341926), (42, 1951605), (45, 1821498), (54, 1517915), (62, 1322055), (63, 1301070), (70, 1170963), (90, 910749), (93, 881370), (105, 780642), (126, 650535), (135, 607166), (155, 528822), (186, 440685), (189, 433690), (210, 390321), (217, 377730), (270, 303583), (279, 293790), (310, 264411), (315, 260214), (378, 216845), (434, 188865), (465, 176274), (558, 146895), (630, 130107), (651, 125910), (837, 97930), (930, 88137), (945, 86738), (1085, 75546), (1302, 62955), (1395, 58758), (1399, 58590), (1674, 48965), (1890, 43369), (1953, 41970), (2170, 37773), (2790, 29379), (2798, 29295), (3255, 25182), (3906, 20985), (4185, 19586), (4197, 19530), (5859, 13990), (6510, 12591), (6995, 11718), (8370, 9793), (8394, 9765)]