31421390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 78769152

約数和(自身を除く): 47347762

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 43, 55, 65, 70, 73, 77, 86, 91, 110, 130, 143, 146, 154, 182, 215, 286, 301, 365, 385, 430, 455, 473, 511, 559, 602, 715, 730, 770, 803, 910, 946, 949, 1001, 1022, 1118, 1430, 1505, 1606, 1898, 2002, 2365, 2555, 2795, 3010, 3139, 3311, 3913, 4015, 4730, 4745, 5005, 5110, 5590, 5621, 6149, 6278, 6622, 6643, 7826, 8030, 9490, 10010, 10439, 11242, 12298, 13286, 15695, 16555, 19565, 20878, 21973, 28105, 30745, 31390, 33110, 33215, 34529, 39130, 40807, 43043, 43946, 52195, 56210, 61490, 66430, 69058, 73073, 81614, 86086, 104390, 109865, 146146, 172645, 204035, 215215, 219730, 241703, 285649, 345290, 365365, 408070, 430430, 448877, 483406, 571298, 730730, 897754, 1208515, 1428245, 2244385, 2417030, 2856490, 3142139, 4488770, 6284278, 15710695, 31421390]

約数ペア:

[(1, 31421390), (2, 15710695), (5, 6284278), (7, 4488770), (10, 3142139), (11, 2856490), (13, 2417030), (14, 2244385), (22, 1428245), (26, 1208515), (35, 897754), (43, 730730), (55, 571298), (65, 483406), (70, 448877), (73, 430430), (77, 408070), (86, 365365), (91, 345290), (110, 285649), (130, 241703), (143, 219730), (146, 215215), (154, 204035), (182, 172645), (215, 146146), (286, 109865), (301, 104390), (365, 86086), (385, 81614), (430, 73073), (455, 69058), (473, 66430), (511, 61490), (559, 56210), (602, 52195), (715, 43946), (730, 43043), (770, 40807), (803, 39130), (910, 34529), (946, 33215), (949, 33110), (1001, 31390), (1022, 30745), (1118, 28105), (1430, 21973), (1505, 20878), (1606, 19565), (1898, 16555), (2002, 15695), (2365, 13286), (2555, 12298), (2795, 11242), (3010, 10439), (3139, 10010), (3311, 9490), (3913, 8030), (4015, 7826), (4730, 6643), (4745, 6622), (5005, 6278), (5110, 6149), (5590, 5621)]