439949380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{9781}}^1$

素因数の和:9976

約数の個数: 48

約数和(自身を含む): 1000815984

約数和(自身を除く): 560866604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 346, 692, 865, 1730, 2249, 3460, 4498, 8996, 9781, 11245, 19562, 22490, 39124, 44980, 48905, 97810, 127153, 195620, 254306, 508612, 635765, 1271530, 1692113, 2543060, 3384226, 6768452, 8460565, 16921130, 21997469, 33842260, 43994938, 87989876, 109987345, 219974690, 439949380]

約数ペア:

[(1, 439949380), (2, 219974690), (4, 109987345), (5, 87989876), (10, 43994938), (13, 33842260), (20, 21997469), (26, 16921130), (52, 8460565), (65, 6768452), (130, 3384226), (173, 2543060), (260, 1692113), (346, 1271530), (692, 635765), (865, 508612), (1730, 254306), (2249, 195620), (3460, 127153), (4498, 97810), (8996, 48905), (9781, 44980), (11245, 39124), (19562, 22490)]