786420

素因数分解:

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

素因数の和:289

約数の個数: 72

約数和(自身を含む): 2535624

約数和(自身を除く): 1749204

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, 153, 170, 180, 204, 255, 257, 306, 340, 510, 514, 612, 765, 771, 1020, 1028, 1285, 1530, 1542, 2313, 2570, 3060, 3084, 3855, 4369, 4626, 5140, 7710, 8738, 9252, 11565, 13107, 15420, 17476, 21845, 23130, 26214, 39321, 43690, 46260, 52428, 65535, 78642, 87380, 131070, 157284, 196605, 262140, 393210, 786420]

約数ペア:

[(1, 786420), (2, 393210), (3, 262140), (4, 196605), (5, 157284), (6, 131070), (9, 87380), (10, 78642), (12, 65535), (15, 52428), (17, 46260), (18, 43690), (20, 39321), (30, 26214), (34, 23130), (36, 21845), (45, 17476), (51, 15420), (60, 13107), (68, 11565), (85, 9252), (90, 8738), (102, 7710), (153, 5140), (170, 4626), (180, 4369), (204, 3855), (255, 3084), (257, 3060), (306, 2570), (340, 2313), (510, 1542), (514, 1530), (612, 1285), (765, 1028), (771, 1020)]