745542980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{409639}}^1$

素因数の和:409668

約数の個数: 48

約数和(自身を含む): 1926946560

約数和(自身を除く): 1181403580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 409639, 819278, 1638556, 2048195, 2867473, 4096390, 5325307, 5734946, 8192780, 10650614, 11469892, 14337365, 21301228, 26626535, 28674730, 37277149, 53253070, 57349460, 74554298, 106506140, 149108596, 186385745, 372771490, 745542980]

約数ペア:

[(1, 745542980), (2, 372771490), (4, 186385745), (5, 149108596), (7, 106506140), (10, 74554298), (13, 57349460), (14, 53253070), (20, 37277149), (26, 28674730), (28, 26626535), (35, 21301228), (52, 14337365), (65, 11469892), (70, 10650614), (91, 8192780), (130, 5734946), (140, 5325307), (182, 4096390), (260, 2867473), (364, 2048195), (455, 1638556), (910, 819278), (1820, 409639)]