979720880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31321}}^1$

素因数の和:31374

約数の個数: 80

約数和(自身を含む): 2516785344

約数和(自身を除く): 1537064464

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 782, 920, 1360, 1564, 1840, 1955, 3128, 3910, 6256, 7820, 15640, 31280, 31321, 62642, 125284, 156605, 250568, 313210, 501136, 532457, 626420, 720383, 1064914, 1252840, 1440766, 2129828, 2505680, 2662285, 2881532, 3601915, 4259656, 5324570, 5763064, 7203830, 8519312, 10649140, 11526128, 12246511, 14407660, 21298280, 24493022, 28815320, 42596560, 48986044, 57630640, 61232555, 97972088, 122465110, 195944176, 244930220, 489860440, 979720880]

約数ペア:

[(1, 979720880), (2, 489860440), (4, 244930220), (5, 195944176), (8, 122465110), (10, 97972088), (16, 61232555), (17, 57630640), (20, 48986044), (23, 42596560), (34, 28815320), (40, 24493022), (46, 21298280), (68, 14407660), (80, 12246511), (85, 11526128), (92, 10649140), (115, 8519312), (136, 7203830), (170, 5763064), (184, 5324570), (230, 4259656), (272, 3601915), (340, 2881532), (368, 2662285), (391, 2505680), (460, 2129828), (680, 1440766), (782, 1252840), (920, 1064914), (1360, 720383), (1564, 626420), (1840, 532457), (1955, 501136), (3128, 313210), (3910, 250568), (6256, 156605), (7820, 125284), (15640, 62642), (31280, 31321)]