31903760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2477}}^1$

素因数の和:2520

約数の個数: 80

約数和(自身を含む): 88494336

約数和(自身を除く): 56590576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2477, 2576, 3220, 4954, 6440, 9908, 12385, 12880, 17339, 19816, 24770, 34678, 39632, 49540, 56971, 69356, 86695, 99080, 113942, 138712, 173390, 198160, 227884, 277424, 284855, 346780, 398797, 455768, 569710, 693560, 797594, 911536, 1139420, 1387120, 1595188, 1993985, 2278840, 3190376, 3987970, 4557680, 6380752, 7975940, 15951880, 31903760]

約数ペア:

[(1, 31903760), (2, 15951880), (4, 7975940), (5, 6380752), (7, 4557680), (8, 3987970), (10, 3190376), (14, 2278840), (16, 1993985), (20, 1595188), (23, 1387120), (28, 1139420), (35, 911536), (40, 797594), (46, 693560), (56, 569710), (70, 455768), (80, 398797), (92, 346780), (112, 284855), (115, 277424), (140, 227884), (161, 198160), (184, 173390), (230, 138712), (280, 113942), (322, 99080), (368, 86695), (460, 69356), (560, 56971), (644, 49540), (805, 39632), (920, 34678), (1288, 24770), (1610, 19816), (1840, 17339), (2477, 12880), (2576, 12385), (3220, 9908), (4954, 6440)]