789781720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{216973}}^1$

素因数の和:217004

約数の個数: 64

約数和(自身を含む): 2187097920

約数和(自身を除く): 1397316200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 216973, 433946, 867892, 1084865, 1518811, 1735784, 2169730, 2820649, 3037622, 4339460, 5641298, 6075244, 7594055, 8678920, 11282596, 12150488, 14103245, 15188110, 19744543, 22565192, 28206490, 30376220, 39489086, 56412980, 60752440, 78978172, 98722715, 112825960, 157956344, 197445430, 394890860, 789781720]

約数ペア:

[(1, 789781720), (2, 394890860), (4, 197445430), (5, 157956344), (7, 112825960), (8, 98722715), (10, 78978172), (13, 60752440), (14, 56412980), (20, 39489086), (26, 30376220), (28, 28206490), (35, 22565192), (40, 19744543), (52, 15188110), (56, 14103245), (65, 12150488), (70, 11282596), (91, 8678920), (104, 7594055), (130, 6075244), (140, 5641298), (182, 4339460), (260, 3037622), (280, 2820649), (364, 2169730), (455, 1735784), (520, 1518811), (728, 1084865), (910, 867892), (1820, 433946), (3640, 216973)]