31577910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:342

約数の個数: 128

約数和(自身を含む): 95800320

約数和(自身を除く): 64222410

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 43, 65, 70, 78, 86, 91, 105, 129, 130, 182, 195, 210, 215, 258, 269, 273, 301, 390, 430, 455, 538, 546, 559, 602, 645, 807, 903, 910, 1118, 1290, 1345, 1365, 1505, 1614, 1677, 1806, 1883, 2690, 2730, 2795, 3010, 3354, 3497, 3766, 3913, 4035, 4515, 5590, 5649, 6994, 7826, 8070, 8385, 9030, 9415, 10491, 11298, 11567, 11739, 16770, 17485, 18830, 19565, 20982, 23134, 23478, 24479, 28245, 34701, 34970, 39130, 48958, 52455, 56490, 57835, 58695, 69402, 73437, 80969, 104910, 115670, 117390, 122395, 146874, 150371, 161938, 173505, 242907, 244790, 300742, 347010, 367185, 404845, 451113, 485814, 734370, 751855, 809690, 902226, 1052597, 1214535, 1503710, 2105194, 2255565, 2429070, 3157791, 4511130, 5262985, 6315582, 10525970, 15788955, 31577910]

約数ペア:

[(1, 31577910), (2, 15788955), (3, 10525970), (5, 6315582), (6, 5262985), (7, 4511130), (10, 3157791), (13, 2429070), (14, 2255565), (15, 2105194), (21, 1503710), (26, 1214535), (30, 1052597), (35, 902226), (39, 809690), (42, 751855), (43, 734370), (65, 485814), (70, 451113), (78, 404845), (86, 367185), (91, 347010), (105, 300742), (129, 244790), (130, 242907), (182, 173505), (195, 161938), (210, 150371), (215, 146874), (258, 122395), (269, 117390), (273, 115670), (301, 104910), (390, 80969), (430, 73437), (455, 69402), (538, 58695), (546, 57835), (559, 56490), (602, 52455), (645, 48958), (807, 39130), (903, 34970), (910, 34701), (1118, 28245), (1290, 24479), (1345, 23478), (1365, 23134), (1505, 20982), (1614, 19565), (1677, 18830), (1806, 17485), (1883, 16770), (2690, 11739), (2730, 11567), (2795, 11298), (3010, 10491), (3354, 9415), (3497, 9030), (3766, 8385), (3913, 8070), (4035, 7826), (4515, 6994), (5590, 5649)]