320123440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43973}}^1$

素因数の和:44006

約数の個数: 80

約数和(自身を含む): 916066368

約数和(自身を除く): 595942928

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 43973, 87946, 175892, 219865, 307811, 351784, 439730, 571649, 615622, 703568, 879460, 1143298, 1231244, 1539055, 1758920, 2286596, 2462488, 2858245, 3078110, 3517840, 4001543, 4573192, 4924976, 5716490, 6156220, 8003086, 9146384, 11432980, 12312440, 16006172, 20007715, 22865960, 24624880, 32012344, 40015430, 45731920, 64024688, 80030860, 160061720, 320123440]

約数ペア:

[(1, 320123440), (2, 160061720), (4, 80030860), (5, 64024688), (7, 45731920), (8, 40015430), (10, 32012344), (13, 24624880), (14, 22865960), (16, 20007715), (20, 16006172), (26, 12312440), (28, 11432980), (35, 9146384), (40, 8003086), (52, 6156220), (56, 5716490), (65, 4924976), (70, 4573192), (80, 4001543), (91, 3517840), (104, 3078110), (112, 2858245), (130, 2462488), (140, 2286596), (182, 1758920), (208, 1539055), (260, 1231244), (280, 1143298), (364, 879460), (455, 703568), (520, 615622), (560, 571649), (728, 439730), (910, 351784), (1040, 307811), (1456, 219865), (1820, 175892), (3640, 87946), (7280, 43973)]