31186372

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 68953920

約数和(自身を除く): 37767548

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 61, 62, 76, 122, 124, 133, 217, 244, 266, 427, 434, 532, 589, 854, 868, 961, 1159, 1178, 1708, 1891, 1922, 2318, 2356, 3782, 3844, 4123, 4636, 6727, 7564, 8113, 8246, 13237, 13454, 16226, 16492, 18259, 26474, 26908, 32452, 35929, 36518, 52948, 58621, 71858, 73036, 117242, 127813, 143716, 234484, 251503, 255626, 410347, 503006, 511252, 820694, 1006012, 1113799, 1641388, 2227598, 4455196, 7796593, 15593186, 31186372]

約数ペア:

[(1, 31186372), (2, 15593186), (4, 7796593), (7, 4455196), (14, 2227598), (19, 1641388), (28, 1113799), (31, 1006012), (38, 820694), (61, 511252), (62, 503006), (76, 410347), (122, 255626), (124, 251503), (133, 234484), (217, 143716), (244, 127813), (266, 117242), (427, 73036), (434, 71858), (532, 58621), (589, 52948), (854, 36518), (868, 35929), (961, 32452), (1159, 26908), (1178, 26474), (1708, 18259), (1891, 16492), (1922, 16226), (2318, 13454), (2356, 13237), (3782, 8246), (3844, 8113), (4123, 7564), (4636, 6727)]