17811865540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{691}}^1\times {\mathrm{907}}^1$

素因数の和:1650

約数の個数: 144

約数和(自身を含む): 45127091520

約数和(自身を除く): 27315225980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 691, 812, 907, 980, 1015, 1382, 1421, 1814, 2030, 2764, 2842, 3455, 3628, 4060, 4535, 4837, 5684, 6349, 6910, 7105, 9070, 9674, 12698, 13820, 14210, 18140, 19348, 20039, 24185, 25396, 26303, 28420, 31745, 33859, 40078, 44443, 48370, 52606, 63490, 67718, 80156, 88886, 96740, 100195, 105212, 126980, 131515, 135436, 140273, 169295, 177772, 184121, 200390, 222215, 263030, 280546, 338590, 368242, 400780, 444430, 526060, 561092, 626737, 677180, 701365, 736484, 888860, 920605, 981911, 1253474, 1288847, 1402730, 1841210, 1963822, 2506948, 2577694, 2805460, 3133685, 3682420, 3927644, 4387159, 4909555, 5155388, 6267370, 6444235, 8774318, 9819110, 12534740, 12888470, 17548636, 18175373, 19638220, 21935795, 25776940, 30710113, 36350746, 43871590, 61420226, 72701492, 87743180, 90876865, 122840452, 127227611, 153550565, 181753730, 254455222, 307101130, 363507460, 508910444, 614202260, 636138055, 890593277, 1272276110, 1781186554, 2544552220, 3562373108, 4452966385, 8905932770, 17811865540]

約数ペア:

[(1, 17811865540), (2, 8905932770), (4, 4452966385), (5, 3562373108), (7, 2544552220), (10, 1781186554), (14, 1272276110), (20, 890593277), (28, 636138055), (29, 614202260), (35, 508910444), (49, 363507460), (58, 307101130), (70, 254455222), (98, 181753730), (116, 153550565), (140, 127227611), (145, 122840452), (196, 90876865), (203, 87743180), (245, 72701492), (290, 61420226), (406, 43871590), (490, 36350746), (580, 30710113), (691, 25776940), (812, 21935795), (907, 19638220), (980, 18175373), (1015, 17548636), (1382, 12888470), (1421, 12534740), (1814, 9819110), (2030, 8774318), (2764, 6444235), (2842, 6267370), (3455, 5155388), (3628, 4909555), (4060, 4387159), (4535, 3927644), (4837, 3682420), (5684, 3133685), (6349, 2805460), (6910, 2577694), (7105, 2506948), (9070, 1963822), (9674, 1841210), (12698, 1402730), (13820, 1288847), (14210, 1253474), (18140, 981911), (19348, 920605), (20039, 888860), (24185, 736484), (25396, 701365), (26303, 677180), (28420, 626737), (31745, 561092), (33859, 526060), (40078, 444430), (44443, 400780), (48370, 368242), (52606, 338590), (63490, 280546), (67718, 263030), (80156, 222215), (88886, 200390), (96740, 184121), (100195, 177772), (105212, 169295), (126980, 140273), (131515, 135436)]