81260340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{599}}^1$

素因数の和:654

約数の個数: 192

約数和(自身を含む): 290304000

約数和(自身を除く): 209043660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 19, 20, 21, 28, 30, 34, 35, 38, 42, 51, 57, 60, 68, 70, 76, 84, 85, 95, 102, 105, 114, 119, 133, 140, 170, 190, 204, 210, 228, 238, 255, 266, 285, 323, 340, 357, 380, 399, 420, 476, 510, 532, 570, 595, 599, 646, 665, 714, 798, 969, 1020, 1140, 1190, 1198, 1292, 1330, 1428, 1596, 1615, 1785, 1797, 1938, 1995, 2261, 2380, 2396, 2660, 2995, 3230, 3570, 3594, 3876, 3990, 4193, 4522, 4845, 5990, 6460, 6783, 7140, 7188, 7980, 8386, 8985, 9044, 9690, 10183, 11305, 11381, 11980, 12579, 13566, 16772, 17970, 19380, 20366, 20965, 22610, 22762, 25158, 27132, 30549, 33915, 34143, 35940, 40732, 41930, 45220, 45524, 50316, 50915, 56905, 61098, 62895, 67830, 68286, 71281, 79667, 83860, 101830, 113810, 122196, 125790, 135660, 136572, 142562, 152745, 159334, 170715, 193477, 203660, 213843, 227620, 239001, 251580, 285124, 305490, 318668, 341430, 356405, 386954, 398335, 427686, 478002, 580431, 610980, 682860, 712810, 773908, 796670, 855372, 956004, 967385, 1069215, 1160862, 1195005, 1354339, 1425620, 1593340, 1934770, 2138430, 2321724, 2390010, 2708678, 2902155, 3869540, 4063017, 4276860, 4780020, 5417356, 5804310, 6771695, 8126034, 11608620, 13543390, 16252068, 20315085, 27086780, 40630170, 81260340]

約数ペア:

[(1, 81260340), (2, 40630170), (3, 27086780), (4, 20315085), (5, 16252068), (6, 13543390), (7, 11608620), (10, 8126034), (12, 6771695), (14, 5804310), (15, 5417356), (17, 4780020), (19, 4276860), (20, 4063017), (21, 3869540), (28, 2902155), (30, 2708678), (34, 2390010), (35, 2321724), (38, 2138430), (42, 1934770), (51, 1593340), (57, 1425620), (60, 1354339), (68, 1195005), (70, 1160862), (76, 1069215), (84, 967385), (85, 956004), (95, 855372), (102, 796670), (105, 773908), (114, 712810), (119, 682860), (133, 610980), (140, 580431), (170, 478002), (190, 427686), (204, 398335), (210, 386954), (228, 356405), (238, 341430), (255, 318668), (266, 305490), (285, 285124), (323, 251580), (340, 239001), (357, 227620), (380, 213843), (399, 203660), (420, 193477), (476, 170715), (510, 159334), (532, 152745), (570, 142562), (595, 136572), (599, 135660), (646, 125790), (665, 122196), (714, 113810), (798, 101830), (969, 83860), (1020, 79667), (1140, 71281), (1190, 68286), (1198, 67830), (1292, 62895), (1330, 61098), (1428, 56905), (1596, 50915), (1615, 50316), (1785, 45524), (1797, 45220), (1938, 41930), (1995, 40732), (2261, 35940), (2380, 34143), (2396, 33915), (2660, 30549), (2995, 27132), (3230, 25158), (3570, 22762), (3594, 22610), (3876, 20965), (3990, 20366), (4193, 19380), (4522, 17970), (4845, 16772), (5990, 13566), (6460, 12579), (6783, 11980), (7140, 11381), (7188, 11305), (7980, 10183), (8386, 9690), (8985, 9044)]