2178737715

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:458

約数の個数: 128

約数和(自身を含む): 4483123200

約数和(自身を除く): 2304385485

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 137, 147, 165, 231, 245, 281, 343, 385, 411, 539, 685, 735, 843, 959, 1029, 1155, 1405, 1507, 1617, 1715, 1967, 2055, 2695, 2877, 3091, 3773, 4215, 4521, 4795, 5145, 5901, 6713, 7535, 8085, 9273, 9835, 10549, 11319, 13769, 14385, 15455, 18865, 20139, 21637, 22605, 29505, 31647, 33565, 38497, 41307, 46365, 46991, 52745, 56595, 64911, 68845, 73843, 96383, 100695, 108185, 115491, 140973, 151459, 158235, 192485, 206535, 221529, 234955, 269479, 289149, 324555, 369215, 423467, 454377, 481915, 516901, 577455, 704865, 757295, 808437, 1060213, 1107645, 1270401, 1347395, 1445745, 1550703, 1886353, 2117335, 2271885, 2584505, 2964269, 3180639, 4042185, 5301065, 5659059, 6352005, 7753515, 8892807, 9431765, 13204471, 14821345, 15903195, 20749883, 28295295, 39613413, 44464035, 62249649, 66022355, 103749415, 145249181, 198067065, 311248245, 435747543, 726245905, 2178737715]

約数ペア:

[(1, 2178737715), (3, 726245905), (5, 435747543), (7, 311248245), (11, 198067065), (15, 145249181), (21, 103749415), (33, 66022355), (35, 62249649), (49, 44464035), (55, 39613413), (77, 28295295), (105, 20749883), (137, 15903195), (147, 14821345), (165, 13204471), (231, 9431765), (245, 8892807), (281, 7753515), (343, 6352005), (385, 5659059), (411, 5301065), (539, 4042185), (685, 3180639), (735, 2964269), (843, 2584505), (959, 2271885), (1029, 2117335), (1155, 1886353), (1405, 1550703), (1507, 1445745), (1617, 1347395), (1715, 1270401), (1967, 1107645), (2055, 1060213), (2695, 808437), (2877, 757295), (3091, 704865), (3773, 577455), (4215, 516901), (4521, 481915), (4795, 454377), (5145, 423467), (5901, 369215), (6713, 324555), (7535, 289149), (8085, 269479), (9273, 234955), (9835, 221529), (10549, 206535), (11319, 192485), (13769, 158235), (14385, 151459), (15455, 140973), (18865, 115491), (20139, 108185), (21637, 100695), (22605, 96383), (29505, 73843), (31647, 68845), (33565, 64911), (38497, 56595), (41307, 52745), (46365, 46991)]