245964520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{641}}^1$

素因数の和:886

約数の個数: 64

約数和(自身を含む): 567861840

約数和(自身を除く): 321897320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 181, 212, 265, 362, 424, 530, 641, 724, 905, 1060, 1282, 1448, 1810, 2120, 2564, 3205, 3620, 5128, 6410, 7240, 9593, 12820, 19186, 25640, 33973, 38372, 47965, 67946, 76744, 95930, 116021, 135892, 169865, 191860, 232042, 271784, 339730, 383720, 464084, 580105, 679460, 928168, 1160210, 1358920, 2320420, 4640840, 6149113, 12298226, 24596452, 30745565, 49192904, 61491130, 122982260, 245964520]

約数ペア:

[(1, 245964520), (2, 122982260), (4, 61491130), (5, 49192904), (8, 30745565), (10, 24596452), (20, 12298226), (40, 6149113), (53, 4640840), (106, 2320420), (181, 1358920), (212, 1160210), (265, 928168), (362, 679460), (424, 580105), (530, 464084), (641, 383720), (724, 339730), (905, 271784), (1060, 232042), (1282, 191860), (1448, 169865), (1810, 135892), (2120, 116021), (2564, 95930), (3205, 76744), (3620, 67946), (5128, 47965), (6410, 38372), (7240, 33973), (9593, 25640), (12820, 19186)]