77197900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1451

約数の個数: 72

約数和(自身を含む): 184734704

約数和(自身を除く): 107536804

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 430, 559, 650, 860, 1075, 1118, 1300, 1381, 2150, 2236, 2762, 2795, 4300, 5524, 5590, 6905, 11180, 13810, 13975, 17953, 27620, 27950, 34525, 35906, 55900, 59383, 69050, 71812, 89765, 118766, 138100, 179530, 237532, 296915, 359060, 448825, 593830, 771979, 897650, 1187660, 1484575, 1543958, 1795300, 2969150, 3087916, 3859895, 5938300, 7719790, 15439580, 19299475, 38598950, 77197900]

約数ペア:

[(1, 77197900), (2, 38598950), (4, 19299475), (5, 15439580), (10, 7719790), (13, 5938300), (20, 3859895), (25, 3087916), (26, 2969150), (43, 1795300), (50, 1543958), (52, 1484575), (65, 1187660), (86, 897650), (100, 771979), (130, 593830), (172, 448825), (215, 359060), (260, 296915), (325, 237532), (430, 179530), (559, 138100), (650, 118766), (860, 89765), (1075, 71812), (1118, 69050), (1300, 59383), (1381, 55900), (2150, 35906), (2236, 34525), (2762, 27950), (2795, 27620), (4300, 17953), (5524, 13975), (5590, 13810), (6905, 11180)]