720652790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21911}}^1$

素因数の和:21965

約数の個数: 64

約数和(自身を含む): 1590285312

約数和(自身を除く): 869632522

約数列:

[1, 2, 5, 10, 11, 13, 22, 23, 26, 46, 55, 65, 110, 115, 130, 143, 230, 253, 286, 299, 506, 598, 715, 1265, 1430, 1495, 2530, 2990, 3289, 6578, 16445, 21911, 32890, 43822, 109555, 219110, 241021, 284843, 482042, 503953, 569686, 1007906, 1205105, 1424215, 2410210, 2519765, 2848430, 3133273, 5039530, 5543483, 6266546, 6551389, 11086966, 13102778, 15666365, 27717415, 31332730, 32756945, 55434830, 65513890, 72065279, 144130558, 360326395, 720652790]

約数ペア:

[(1, 720652790), (2, 360326395), (5, 144130558), (10, 72065279), (11, 65513890), (13, 55434830), (22, 32756945), (23, 31332730), (26, 27717415), (46, 15666365), (55, 13102778), (65, 11086966), (110, 6551389), (115, 6266546), (130, 5543483), (143, 5039530), (230, 3133273), (253, 2848430), (286, 2519765), (299, 2410210), (506, 1424215), (598, 1205105), (715, 1007906), (1265, 569686), (1430, 503953), (1495, 482042), (2530, 284843), (2990, 241021), (3289, 219110), (6578, 109555), (16445, 43822), (21911, 32890)]