39086720

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:565

約数の個数: 64

約数和(自身を含む): 94278600

約数和(自身を除く): 55191880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 314, 320, 389, 628, 640, 778, 785, 1256, 1556, 1570, 1945, 2512, 3112, 3140, 3890, 5024, 6224, 6280, 7780, 10048, 12448, 12560, 15560, 20096, 24896, 25120, 31120, 49792, 50240, 61073, 62240, 100480, 122146, 124480, 244292, 248960, 305365, 488584, 610730, 977168, 1221460, 1954336, 2442920, 3908672, 4885840, 7817344, 9771680, 19543360, 39086720]

約数ペア:

[(1, 39086720), (2, 19543360), (4, 9771680), (5, 7817344), (8, 4885840), (10, 3908672), (16, 2442920), (20, 1954336), (32, 1221460), (40, 977168), (64, 610730), (80, 488584), (128, 305365), (157, 248960), (160, 244292), (314, 124480), (320, 122146), (389, 100480), (628, 62240), (640, 61073), (778, 50240), (785, 49792), (1256, 31120), (1556, 25120), (1570, 24896), (1945, 20096), (2512, 15560), (3112, 12560), (3140, 12448), (3890, 10048), (5024, 7780), (6224, 6280)]