81304830

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 228096000

約数和(自身を除く): 146791170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 47, 54, 86, 90, 94, 129, 135, 141, 149, 215, 235, 258, 270, 282, 298, 387, 423, 430, 447, 470, 645, 705, 745, 774, 846, 894, 1161, 1269, 1290, 1341, 1410, 1490, 1935, 2021, 2115, 2235, 2322, 2538, 2682, 3870, 4023, 4042, 4230, 4470, 5805, 6063, 6345, 6407, 6705, 7003, 8046, 10105, 11610, 12126, 12690, 12814, 13410, 14006, 18189, 19221, 20115, 20210, 21009, 30315, 32035, 35015, 36378, 38442, 40230, 42018, 54567, 57663, 60630, 63027, 64070, 70030, 90945, 96105, 105045, 109134, 115326, 126054, 172989, 181890, 189081, 192210, 210090, 272835, 288315, 301129, 315135, 345978, 378162, 545670, 576630, 602258, 630270, 864945, 903387, 945405, 1505645, 1729890, 1806774, 1890810, 2710161, 3011290, 4516935, 5420322, 8130483, 9033870, 13550805, 16260966, 27101610, 40652415, 81304830]

約数ペア:

[(1, 81304830), (2, 40652415), (3, 27101610), (5, 16260966), (6, 13550805), (9, 9033870), (10, 8130483), (15, 5420322), (18, 4516935), (27, 3011290), (30, 2710161), (43, 1890810), (45, 1806774), (47, 1729890), (54, 1505645), (86, 945405), (90, 903387), (94, 864945), (129, 630270), (135, 602258), (141, 576630), (149, 545670), (215, 378162), (235, 345978), (258, 315135), (270, 301129), (282, 288315), (298, 272835), (387, 210090), (423, 192210), (430, 189081), (447, 181890), (470, 172989), (645, 126054), (705, 115326), (745, 109134), (774, 105045), (846, 96105), (894, 90945), (1161, 70030), (1269, 64070), (1290, 63027), (1341, 60630), (1410, 57663), (1490, 54567), (1935, 42018), (2021, 40230), (2115, 38442), (2235, 36378), (2322, 35015), (2538, 32035), (2682, 30315), (3870, 21009), (4023, 20210), (4042, 20115), (4230, 19221), (4470, 18189), (5805, 14006), (6063, 13410), (6345, 12814), (6407, 12690), (6705, 12126), (7003, 11610), (8046, 10105)]