1721475720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{1427}}^1$

素因数の和:2564

約数の個数: 128

約数和(自身を含む): 5747414400

約数和(自身を除く): 4025938680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 1117, 1427, 2234, 2854, 3351, 4281, 4468, 5585, 5708, 6702, 7135, 8562, 8936, 10053, 11170, 11416, 12843, 13404, 14270, 16755, 17124, 20106, 21405, 22340, 25686, 26808, 28540, 30159, 33510, 34248, 38529, 40212, 42810, 44680, 50265, 51372, 57080, 60318, 64215, 67020, 77058, 80424, 85620, 100530, 102744, 120636, 128430, 134040, 150795, 154116, 171240, 192645, 201060, 241272, 256860, 301590, 308232, 385290, 402120, 513720, 603180, 770580, 1206360, 1541160, 1593959, 3187918, 4781877, 6375836, 7969795, 9563754, 12751672, 14345631, 15939590, 19127508, 23909385, 28691262, 31879180, 38255016, 43036893, 47818770, 57382524, 63758360, 71728155, 86073786, 95637540, 114765048, 143456310, 172147572, 191275080, 215184465, 286912620, 344295144, 430368930, 573825240, 860737860, 1721475720]

約数ペア:

[(1, 1721475720), (2, 860737860), (3, 573825240), (4, 430368930), (5, 344295144), (6, 286912620), (8, 215184465), (9, 191275080), (10, 172147572), (12, 143456310), (15, 114765048), (18, 95637540), (20, 86073786), (24, 71728155), (27, 63758360), (30, 57382524), (36, 47818770), (40, 43036893), (45, 38255016), (54, 31879180), (60, 28691262), (72, 23909385), (90, 19127508), (108, 15939590), (120, 14345631), (135, 12751672), (180, 9563754), (216, 7969795), (270, 6375836), (360, 4781877), (540, 3187918), (1080, 1593959), (1117, 1541160), (1427, 1206360), (2234, 770580), (2854, 603180), (3351, 513720), (4281, 402120), (4468, 385290), (5585, 308232), (5708, 301590), (6702, 256860), (7135, 241272), (8562, 201060), (8936, 192645), (10053, 171240), (11170, 154116), (11416, 150795), (12843, 134040), (13404, 128430), (14270, 120636), (16755, 102744), (17124, 100530), (20106, 85620), (21405, 80424), (22340, 77058), (25686, 67020), (26808, 64215), (28540, 60318), (30159, 57080), (33510, 51372), (34248, 50265), (38529, 44680), (40212, 42810)]