39990860

素因数分解:

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

素因数の和:152

約数の個数: 144

約数和(自身を含む): 109128096

約数和(自身を除く): 69137236

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 49, 52, 65, 70, 73, 86, 91, 98, 130, 140, 146, 172, 182, 196, 215, 245, 260, 292, 301, 364, 365, 430, 455, 490, 511, 559, 602, 637, 730, 860, 910, 949, 980, 1022, 1118, 1204, 1274, 1460, 1505, 1820, 1898, 2044, 2107, 2236, 2548, 2555, 2795, 3010, 3139, 3185, 3577, 3796, 3913, 4214, 4745, 5110, 5590, 6020, 6278, 6370, 6643, 7154, 7826, 8428, 9490, 10220, 10535, 11180, 12556, 12740, 13286, 14308, 15652, 15695, 17885, 18980, 19565, 21070, 21973, 26572, 27391, 31390, 33215, 35770, 39130, 40807, 42140, 43946, 46501, 54782, 62780, 66430, 71540, 78260, 81614, 87892, 93002, 109564, 109865, 132860, 136955, 153811, 163228, 186004, 204035, 219730, 232505, 273910, 285649, 307622, 408070, 439460, 465010, 547820, 571298, 615244, 769055, 816140, 930020, 1142596, 1428245, 1538110, 1999543, 2856490, 3076220, 3999086, 5712980, 7998172, 9997715, 19995430, 39990860]

約数ペア:

[(1, 39990860), (2, 19995430), (4, 9997715), (5, 7998172), (7, 5712980), (10, 3999086), (13, 3076220), (14, 2856490), (20, 1999543), (26, 1538110), (28, 1428245), (35, 1142596), (43, 930020), (49, 816140), (52, 769055), (65, 615244), (70, 571298), (73, 547820), (86, 465010), (91, 439460), (98, 408070), (130, 307622), (140, 285649), (146, 273910), (172, 232505), (182, 219730), (196, 204035), (215, 186004), (245, 163228), (260, 153811), (292, 136955), (301, 132860), (364, 109865), (365, 109564), (430, 93002), (455, 87892), (490, 81614), (511, 78260), (559, 71540), (602, 66430), (637, 62780), (730, 54782), (860, 46501), (910, 43946), (949, 42140), (980, 40807), (1022, 39130), (1118, 35770), (1204, 33215), (1274, 31390), (1460, 27391), (1505, 26572), (1820, 21973), (1898, 21070), (2044, 19565), (2107, 18980), (2236, 17885), (2548, 15695), (2555, 15652), (2795, 14308), (3010, 13286), (3139, 12740), (3185, 12556), (3577, 11180), (3796, 10535), (3913, 10220), (4214, 9490), (4745, 8428), (5110, 7826), (5590, 7154), (6020, 6643), (6278, 6370)]