81633720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:797

約数の個数: 128

約数和(自身を含む): 282124800

約数和(自身を除く): 200491080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 619, 628, 785, 840, 942, 1099, 1238, 1256, 1570, 1857, 1884, 2198, 2355, 2476, 3095, 3140, 3297, 3714, 3768, 4333, 4396, 4710, 4952, 5495, 6190, 6280, 6594, 7428, 8666, 8792, 9285, 9420, 10990, 12380, 12999, 13188, 14856, 16485, 17332, 18570, 18840, 21665, 21980, 24760, 25998, 26376, 32970, 34664, 37140, 43330, 43960, 51996, 64995, 65940, 74280, 86660, 97183, 103992, 129990, 131880, 173320, 194366, 259980, 291549, 388732, 485915, 519960, 583098, 680281, 777464, 971830, 1166196, 1360562, 1457745, 1943660, 2040843, 2332392, 2721124, 2915490, 3401405, 3887320, 4081686, 5442248, 5830980, 6802810, 8163372, 10204215, 11661960, 13605620, 16326744, 20408430, 27211240, 40816860, 81633720]

約数ペア:

[(1, 81633720), (2, 40816860), (3, 27211240), (4, 20408430), (5, 16326744), (6, 13605620), (7, 11661960), (8, 10204215), (10, 8163372), (12, 6802810), (14, 5830980), (15, 5442248), (20, 4081686), (21, 3887320), (24, 3401405), (28, 2915490), (30, 2721124), (35, 2332392), (40, 2040843), (42, 1943660), (56, 1457745), (60, 1360562), (70, 1166196), (84, 971830), (105, 777464), (120, 680281), (140, 583098), (157, 519960), (168, 485915), (210, 388732), (280, 291549), (314, 259980), (420, 194366), (471, 173320), (619, 131880), (628, 129990), (785, 103992), (840, 97183), (942, 86660), (1099, 74280), (1238, 65940), (1256, 64995), (1570, 51996), (1857, 43960), (1884, 43330), (2198, 37140), (2355, 34664), (2476, 32970), (3095, 26376), (3140, 25998), (3297, 24760), (3714, 21980), (3768, 21665), (4333, 18840), (4396, 18570), (4710, 17332), (4952, 16485), (5495, 14856), (6190, 13188), (6280, 12999), (6594, 12380), (7428, 10990), (8666, 9420), (8792, 9285)]