1909361720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{857}}^1$

素因数の和:1057

約数の個数: 128

約数和(自身を含む): 5028566400

約数和(自身を除く): 3119204680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 109, 140, 146, 218, 280, 292, 365, 436, 511, 545, 584, 730, 763, 857, 872, 1022, 1090, 1460, 1526, 1714, 2044, 2180, 2555, 2920, 3052, 3428, 3815, 4088, 4285, 4360, 5110, 5999, 6104, 6856, 7630, 7957, 8570, 10220, 11998, 15260, 15914, 17140, 20440, 23996, 29995, 30520, 31828, 34280, 39785, 47992, 55699, 59990, 62561, 63656, 79570, 93413, 111398, 119980, 125122, 159140, 186826, 222796, 239960, 250244, 278495, 312805, 318280, 373652, 437927, 445592, 467065, 500488, 556990, 625610, 653891, 747304, 875854, 934130, 1113980, 1251220, 1307782, 1751708, 1868260, 2189635, 2227960, 2502440, 2615564, 3269455, 3503416, 3736520, 4379270, 5231128, 6538910, 6819149, 8758540, 13077820, 13638298, 17517080, 26155640, 27276596, 34095745, 47734043, 54553192, 68191490, 95468086, 136382980, 190936172, 238670215, 272765960, 381872344, 477340430, 954680860, 1909361720]

約数ペア:

[(1, 1909361720), (2, 954680860), (4, 477340430), (5, 381872344), (7, 272765960), (8, 238670215), (10, 190936172), (14, 136382980), (20, 95468086), (28, 68191490), (35, 54553192), (40, 47734043), (56, 34095745), (70, 27276596), (73, 26155640), (109, 17517080), (140, 13638298), (146, 13077820), (218, 8758540), (280, 6819149), (292, 6538910), (365, 5231128), (436, 4379270), (511, 3736520), (545, 3503416), (584, 3269455), (730, 2615564), (763, 2502440), (857, 2227960), (872, 2189635), (1022, 1868260), (1090, 1751708), (1460, 1307782), (1526, 1251220), (1714, 1113980), (2044, 934130), (2180, 875854), (2555, 747304), (2920, 653891), (3052, 625610), (3428, 556990), (3815, 500488), (4088, 467065), (4285, 445592), (4360, 437927), (5110, 373652), (5999, 318280), (6104, 312805), (6856, 278495), (7630, 250244), (7957, 239960), (8570, 222796), (10220, 186826), (11998, 159140), (15260, 125122), (15914, 119980), (17140, 111398), (20440, 93413), (23996, 79570), (29995, 63656), (30520, 62561), (31828, 59990), (34280, 55699), (39785, 47992)]