19975270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:709

約数の個数: 64

約数和(自身を含む): 45204480

約数和(自身を除く): 25229210

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 95, 115, 133, 161, 190, 230, 266, 322, 437, 653, 665, 805, 874, 1306, 1330, 1610, 2185, 3059, 3265, 4370, 4571, 6118, 6530, 9142, 12407, 15019, 15295, 22855, 24814, 30038, 30590, 45710, 62035, 75095, 86849, 105133, 124070, 150190, 173698, 210266, 285361, 434245, 525665, 570722, 868490, 1051330, 1426805, 1997527, 2853610, 3995054, 9987635, 19975270]

約数ペア:

[(1, 19975270), (2, 9987635), (5, 3995054), (7, 2853610), (10, 1997527), (14, 1426805), (19, 1051330), (23, 868490), (35, 570722), (38, 525665), (46, 434245), (70, 285361), (95, 210266), (115, 173698), (133, 150190), (161, 124070), (190, 105133), (230, 86849), (266, 75095), (322, 62035), (437, 45710), (653, 30590), (665, 30038), (805, 24814), (874, 22855), (1306, 15295), (1330, 15019), (1610, 12407), (2185, 9142), (3059, 6530), (3265, 6118), (4370, 4571)]