28645781640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{245339}}^1$

素因数の和:245499

約数の個数: 128

約数和(自身を含む): 98921088000

約数和(自身を除く): 70275306360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 139, 140, 168, 210, 278, 280, 417, 420, 556, 695, 834, 840, 973, 1112, 1390, 1668, 1946, 2085, 2780, 2919, 3336, 3892, 4170, 4865, 5560, 5838, 7784, 8340, 9730, 11676, 14595, 16680, 19460, 23352, 29190, 38920, 58380, 116760, 245339, 490678, 736017, 981356, 1226695, 1472034, 1717373, 1962712, 2453390, 2944068, 3434746, 3680085, 4906780, 5152119, 5888136, 6869492, 7360170, 8586865, 9813560, 10304238, 13738984, 14720340, 17173730, 20608476, 25760595, 29440680, 34102121, 34347460, 41216952, 51521190, 68204242, 68694920, 102306363, 103042380, 136408484, 170510605, 204612726, 206084760, 238714847, 272816968, 341021210, 409225452, 477429694, 511531815, 682042420, 716144541, 818450904, 954859388, 1023063630, 1193574235, 1364084840, 1432289082, 1909718776, 2046127260, 2387148470, 2864578164, 3580722705, 4092254520, 4774296940, 5729156328, 7161445410, 9548593880, 14322890820, 28645781640]

約数ペア:

[(1, 28645781640), (2, 14322890820), (3, 9548593880), (4, 7161445410), (5, 5729156328), (6, 4774296940), (7, 4092254520), (8, 3580722705), (10, 2864578164), (12, 2387148470), (14, 2046127260), (15, 1909718776), (20, 1432289082), (21, 1364084840), (24, 1193574235), (28, 1023063630), (30, 954859388), (35, 818450904), (40, 716144541), (42, 682042420), (56, 511531815), (60, 477429694), (70, 409225452), (84, 341021210), (105, 272816968), (120, 238714847), (139, 206084760), (140, 204612726), (168, 170510605), (210, 136408484), (278, 103042380), (280, 102306363), (417, 68694920), (420, 68204242), (556, 51521190), (695, 41216952), (834, 34347460), (840, 34102121), (973, 29440680), (1112, 25760595), (1390, 20608476), (1668, 17173730), (1946, 14720340), (2085, 13738984), (2780, 10304238), (2919, 9813560), (3336, 8586865), (3892, 7360170), (4170, 6869492), (4865, 5888136), (5560, 5152119), (5838, 4906780), (7784, 3680085), (8340, 3434746), (9730, 2944068), (11676, 2453390), (14595, 1962712), (16680, 1717373), (19460, 1472034), (23352, 1226695), (29190, 981356), (38920, 736017), (58380, 490678), (116760, 245339)]