187281990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:723

約数の個数: 128

約数和(自身を含む): 574801920

約数和(自身を除く): 387519930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 197, 210, 270, 315, 378, 394, 503, 591, 630, 945, 985, 1006, 1182, 1379, 1509, 1773, 1890, 1970, 2515, 2758, 2955, 3018, 3521, 3546, 4137, 4527, 5030, 5319, 5910, 6895, 7042, 7545, 8274, 8865, 9054, 10563, 10638, 12411, 13581, 13790, 15090, 17605, 17730, 20685, 21126, 22635, 24822, 26595, 27162, 31689, 35210, 37233, 41370, 45270, 52815, 53190, 62055, 63378, 67905, 74466, 95067, 99091, 105630, 124110, 135810, 158445, 186165, 190134, 198182, 297273, 316890, 372330, 475335, 495455, 594546, 693637, 891819, 950670, 990910, 1387274, 1486365, 1783638, 2080911, 2675457, 2972730, 3468185, 4161822, 4459095, 5350914, 6242733, 6936370, 8918190, 10404555, 12485466, 13377285, 18728199, 20809110, 26754570, 31213665, 37456398, 62427330, 93640995, 187281990]

約数ペア:

[(1, 187281990), (2, 93640995), (3, 62427330), (5, 37456398), (6, 31213665), (7, 26754570), (9, 20809110), (10, 18728199), (14, 13377285), (15, 12485466), (18, 10404555), (21, 8918190), (27, 6936370), (30, 6242733), (35, 5350914), (42, 4459095), (45, 4161822), (54, 3468185), (63, 2972730), (70, 2675457), (90, 2080911), (105, 1783638), (126, 1486365), (135, 1387274), (189, 990910), (197, 950670), (210, 891819), (270, 693637), (315, 594546), (378, 495455), (394, 475335), (503, 372330), (591, 316890), (630, 297273), (945, 198182), (985, 190134), (1006, 186165), (1182, 158445), (1379, 135810), (1509, 124110), (1773, 105630), (1890, 99091), (1970, 95067), (2515, 74466), (2758, 67905), (2955, 63378), (3018, 62055), (3521, 53190), (3546, 52815), (4137, 45270), (4527, 41370), (5030, 37233), (5319, 35210), (5910, 31689), (6895, 27162), (7042, 26595), (7545, 24822), (8274, 22635), (8865, 21126), (9054, 20685), (10563, 17730), (10638, 17605), (12411, 15090), (13581, 13790)]