81455220

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1$

素因数の和:692

約数の個数: 240

約数和(自身を含む): 319068288

約数和(自身を除く): 237613068

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 81, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 162, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 308, 315, 324, 330, 378, 385, 396, 405, 420, 462, 495, 540, 567, 594, 630, 653, 660, 693, 756, 770, 810, 891, 924, 945, 990, 1134, 1155, 1188, 1260, 1306, 1386, 1485, 1540, 1620, 1782, 1890, 1959, 1980, 2079, 2268, 2310, 2612, 2772, 2835, 2970, 3265, 3465, 3564, 3780, 3918, 4158, 4455, 4571, 4620, 5670, 5877, 5940, 6237, 6530, 6930, 7183, 7836, 8316, 8910, 9142, 9795, 10395, 11340, 11754, 12474, 13060, 13713, 13860, 14366, 17631, 17820, 18284, 19590, 20790, 21549, 22855, 23508, 24948, 27426, 28732, 29385, 31185, 35262, 35915, 39180, 41139, 41580, 43098, 45710, 50281, 52893, 54852, 58770, 62370, 64647, 68565, 70524, 71830, 82278, 86196, 88155, 91420, 100562, 105786, 107745, 117540, 123417, 124740, 129294, 137130, 143660, 150843, 164556, 176310, 193941, 201124, 205695, 211572, 215490, 246834, 251405, 258588, 264465, 274260, 301686, 323235, 352620, 370251, 387882, 411390, 430980, 452529, 493668, 502810, 528930, 581823, 603372, 617085, 646470, 740502, 754215, 775764, 822780, 905058, 969705, 1005620, 1057860, 1163646, 1234170, 1292940, 1357587, 1481004, 1508430, 1810116, 1851255, 1939410, 2262645, 2327292, 2468340, 2715174, 2909115, 3016860, 3702510, 3878820, 4072761, 4525290, 5430348, 5818230, 6787935, 7405020, 8145522, 9050580, 11636460, 13575870, 16291044, 20363805, 27151740, 40727610, 81455220]

約数ペア:

[(1, 81455220), (2, 40727610), (3, 27151740), (4, 20363805), (5, 16291044), (6, 13575870), (7, 11636460), (9, 9050580), (10, 8145522), (11, 7405020), (12, 6787935), (14, 5818230), (15, 5430348), (18, 4525290), (20, 4072761), (21, 3878820), (22, 3702510), (27, 3016860), (28, 2909115), (30, 2715174), (33, 2468340), (35, 2327292), (36, 2262645), (42, 1939410), (44, 1851255), (45, 1810116), (54, 1508430), (55, 1481004), (60, 1357587), (63, 1292940), (66, 1234170), (70, 1163646), (77, 1057860), (81, 1005620), (84, 969705), (90, 905058), (99, 822780), (105, 775764), (108, 754215), (110, 740502), (126, 646470), (132, 617085), (135, 603372), (140, 581823), (154, 528930), (162, 502810), (165, 493668), (180, 452529), (189, 430980), (198, 411390), (210, 387882), (220, 370251), (231, 352620), (252, 323235), (270, 301686), (297, 274260), (308, 264465), (315, 258588), (324, 251405), (330, 246834), (378, 215490), (385, 211572), (396, 205695), (405, 201124), (420, 193941), (462, 176310), (495, 164556), (540, 150843), (567, 143660), (594, 137130), (630, 129294), (653, 124740), (660, 123417), (693, 117540), (756, 107745), (770, 105786), (810, 100562), (891, 91420), (924, 88155), (945, 86196), (990, 82278), (1134, 71830), (1155, 70524), (1188, 68565), (1260, 64647), (1306, 62370), (1386, 58770), (1485, 54852), (1540, 52893), (1620, 50281), (1782, 45710), (1890, 43098), (1959, 41580), (1980, 41139), (2079, 39180), (2268, 35915), (2310, 35262), (2612, 31185), (2772, 29385), (2835, 28732), (2970, 27426), (3265, 24948), (3465, 23508), (3564, 22855), (3780, 21549), (3918, 20790), (4158, 19590), (4455, 18284), (4571, 17820), (4620, 17631), (5670, 14366), (5877, 13860), (5940, 13713), (6237, 13060), (6530, 12474), (6930, 11754), (7183, 11340), (7836, 10395), (8316, 9795), (8910, 9142)]