31057740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157}}^2$

素因数の和:336

約数の個数: 108

約数和(自身を含む): 108356976

約数和(自身を除く): 77299236

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 157, 180, 210, 252, 314, 315, 420, 471, 628, 630, 785, 942, 1099, 1260, 1413, 1570, 1884, 2198, 2355, 2826, 3140, 3297, 4396, 4710, 5495, 5652, 6594, 7065, 9420, 9891, 10990, 13188, 14130, 16485, 19782, 21980, 24649, 28260, 32970, 39564, 49298, 49455, 65940, 73947, 98596, 98910, 123245, 147894, 172543, 197820, 221841, 246490, 295788, 345086, 369735, 443682, 492980, 517629, 690172, 739470, 862715, 887364, 1035258, 1109205, 1478940, 1552887, 1725430, 2070516, 2218410, 2588145, 3105774, 3450860, 4436820, 5176290, 6211548, 7764435, 10352580, 15528870, 31057740]

約数ペア:

[(1, 31057740), (2, 15528870), (3, 10352580), (4, 7764435), (5, 6211548), (6, 5176290), (7, 4436820), (9, 3450860), (10, 3105774), (12, 2588145), (14, 2218410), (15, 2070516), (18, 1725430), (20, 1552887), (21, 1478940), (28, 1109205), (30, 1035258), (35, 887364), (36, 862715), (42, 739470), (45, 690172), (60, 517629), (63, 492980), (70, 443682), (84, 369735), (90, 345086), (105, 295788), (126, 246490), (140, 221841), (157, 197820), (180, 172543), (210, 147894), (252, 123245), (314, 98910), (315, 98596), (420, 73947), (471, 65940), (628, 49455), (630, 49298), (785, 39564), (942, 32970), (1099, 28260), (1260, 24649), (1413, 21980), (1570, 19782), (1884, 16485), (2198, 14130), (2355, 13188), (2826, 10990), (3140, 9891), (3297, 9420), (4396, 7065), (4710, 6594), (5495, 5652)]