245349520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{877}}^1$

素因数の和:1172

約数の個数: 80

約数和(自身を含む): 617304240

約数和(自身を除く): 371954720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 269, 520, 538, 877, 1040, 1076, 1345, 1754, 2152, 2690, 3497, 3508, 4304, 4385, 5380, 6994, 7016, 8770, 10760, 11401, 13988, 14032, 17485, 17540, 21520, 22802, 27976, 34970, 35080, 45604, 55952, 57005, 69940, 70160, 91208, 114010, 139880, 182416, 228020, 235913, 279760, 456040, 471826, 912080, 943652, 1179565, 1887304, 2359130, 3066869, 3774608, 4718260, 6133738, 9436520, 12267476, 15334345, 18873040, 24534952, 30668690, 49069904, 61337380, 122674760, 245349520]

約数ペア:

[(1, 245349520), (2, 122674760), (4, 61337380), (5, 49069904), (8, 30668690), (10, 24534952), (13, 18873040), (16, 15334345), (20, 12267476), (26, 9436520), (40, 6133738), (52, 4718260), (65, 3774608), (80, 3066869), (104, 2359130), (130, 1887304), (208, 1179565), (260, 943652), (269, 912080), (520, 471826), (538, 456040), (877, 279760), (1040, 235913), (1076, 228020), (1345, 182416), (1754, 139880), (2152, 114010), (2690, 91208), (3497, 70160), (3508, 69940), (4304, 57005), (4385, 55952), (5380, 45604), (6994, 35080), (7016, 34970), (8770, 27976), (10760, 22802), (11401, 21520), (13988, 17540), (14032, 17485)]