2109207420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{89449}}^1$

素因数の和:89595

約数の個数: 72

約数和(自身を含む): 6446840400

約数和(自身を除く): 4337632980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3930, 4716, 5895, 7860, 11790, 23580, 89449, 178898, 268347, 357796, 447245, 536694, 805041, 894490, 1073388, 1341735, 1610082, 1788980, 2683470, 3220164, 4025205, 5366940, 8050410, 11717819, 16100820, 23435638, 35153457, 46871276, 58589095, 70306914, 105460371, 117178190, 140613828, 175767285, 210920742, 234356380, 351534570, 421841484, 527301855, 703069140, 1054603710, 2109207420]

約数ペア:

[(1, 2109207420), (2, 1054603710), (3, 703069140), (4, 527301855), (5, 421841484), (6, 351534570), (9, 234356380), (10, 210920742), (12, 175767285), (15, 140613828), (18, 117178190), (20, 105460371), (30, 70306914), (36, 58589095), (45, 46871276), (60, 35153457), (90, 23435638), (131, 16100820), (180, 11717819), (262, 8050410), (393, 5366940), (524, 4025205), (655, 3220164), (786, 2683470), (1179, 1788980), (1310, 1610082), (1572, 1341735), (1965, 1073388), (2358, 894490), (2620, 805041), (3930, 536694), (4716, 447245), (5895, 357796), (7860, 268347), (11790, 178898), (23580, 89449)]