221489403980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{1491913}}^1$

素因数の和:1492506

約数の個数: 48

約数和(自身を含む): 501784387104

約数和(自身を除く): 280294983124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 571, 1142, 2284, 2855, 5710, 7423, 11420, 14846, 29692, 37115, 74230, 148460, 1491913, 2983826, 5967652, 7459565, 14919130, 19394869, 29838260, 38789738, 77579476, 96974345, 193948690, 387897380, 851882323, 1703764646, 3407529292, 4259411615, 8518823230, 11074470199, 17037646460, 22148940398, 44297880796, 55372350995, 110744701990, 221489403980]

約数ペア:

[(1, 221489403980), (2, 110744701990), (4, 55372350995), (5, 44297880796), (10, 22148940398), (13, 17037646460), (20, 11074470199), (26, 8518823230), (52, 4259411615), (65, 3407529292), (130, 1703764646), (260, 851882323), (571, 387897380), (1142, 193948690), (2284, 96974345), (2855, 77579476), (5710, 38789738), (7423, 29838260), (11420, 19394869), (14846, 14919130), (29692, 7459565), (37115, 5967652), (74230, 2983826), (148460, 1491913)]