19451120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 49684320

約数和(自身を除く): 30233200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 295, 317, 472, 520, 590, 634, 767, 944, 1040, 1180, 1268, 1534, 1585, 2360, 2536, 3068, 3170, 3835, 4121, 4720, 5072, 6136, 6340, 7670, 8242, 12272, 12680, 15340, 16484, 18703, 20605, 25360, 30680, 32968, 37406, 41210, 61360, 65936, 74812, 82420, 93515, 149624, 164840, 187030, 243139, 299248, 329680, 374060, 486278, 748120, 972556, 1215695, 1496240, 1945112, 2431390, 3890224, 4862780, 9725560, 19451120]

約数ペア:

[(1, 19451120), (2, 9725560), (4, 4862780), (5, 3890224), (8, 2431390), (10, 1945112), (13, 1496240), (16, 1215695), (20, 972556), (26, 748120), (40, 486278), (52, 374060), (59, 329680), (65, 299248), (80, 243139), (104, 187030), (118, 164840), (130, 149624), (208, 93515), (236, 82420), (260, 74812), (295, 65936), (317, 61360), (472, 41210), (520, 37406), (590, 32968), (634, 30680), (767, 25360), (944, 20605), (1040, 18703), (1180, 16484), (1268, 15340), (1534, 12680), (1585, 12272), (2360, 8242), (2536, 7670), (3068, 6340), (3170, 6136), (3835, 5072), (4121, 4720)]