85719780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 278918640

約数和(自身を除く): 193198860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 109, 153, 170, 180, 204, 218, 255, 257, 306, 327, 340, 436, 510, 514, 545, 612, 654, 765, 771, 981, 1020, 1028, 1090, 1285, 1308, 1530, 1542, 1635, 1853, 1962, 2180, 2313, 2570, 3060, 3084, 3270, 3706, 3855, 3924, 4369, 4626, 4905, 5140, 5559, 6540, 7412, 7710, 8738, 9252, 9265, 9810, 11118, 11565, 13107, 15420, 16677, 17476, 18530, 19620, 21845, 22236, 23130, 26214, 27795, 28013, 33354, 37060, 39321, 43690, 46260, 52428, 55590, 56026, 65535, 66708, 78642, 83385, 84039, 87380, 111180, 112052, 131070, 140065, 157284, 166770, 168078, 196605, 252117, 262140, 280130, 333540, 336156, 393210, 420195, 476221, 504234, 560260, 786420, 840390, 952442, 1008468, 1260585, 1428663, 1680780, 1904884, 2381105, 2521170, 2857326, 4285989, 4762210, 5042340, 5714652, 7143315, 8571978, 9524420, 14286630, 17143956, 21429945, 28573260, 42859890, 85719780]

約数ペア:

[(1, 85719780), (2, 42859890), (3, 28573260), (4, 21429945), (5, 17143956), (6, 14286630), (9, 9524420), (10, 8571978), (12, 7143315), (15, 5714652), (17, 5042340), (18, 4762210), (20, 4285989), (30, 2857326), (34, 2521170), (36, 2381105), (45, 1904884), (51, 1680780), (60, 1428663), (68, 1260585), (85, 1008468), (90, 952442), (102, 840390), (109, 786420), (153, 560260), (170, 504234), (180, 476221), (204, 420195), (218, 393210), (255, 336156), (257, 333540), (306, 280130), (327, 262140), (340, 252117), (436, 196605), (510, 168078), (514, 166770), (545, 157284), (612, 140065), (654, 131070), (765, 112052), (771, 111180), (981, 87380), (1020, 84039), (1028, 83385), (1090, 78642), (1285, 66708), (1308, 65535), (1530, 56026), (1542, 55590), (1635, 52428), (1853, 46260), (1962, 43690), (2180, 39321), (2313, 37060), (2570, 33354), (3060, 28013), (3084, 27795), (3270, 26214), (3706, 23130), (3855, 22236), (3924, 21845), (4369, 19620), (4626, 18530), (4905, 17476), (5140, 16677), (5559, 15420), (6540, 13107), (7412, 11565), (7710, 11118), (8738, 9810), (9252, 9265)]