20745270

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:199

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 50016330

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 17, 18, 21, 26, 30, 34, 35, 39, 42, 45, 51, 63, 65, 70, 78, 85, 90, 91, 102, 105, 117, 119, 126, 130, 149, 153, 170, 182, 195, 210, 221, 234, 238, 255, 273, 298, 306, 315, 357, 390, 442, 447, 455, 510, 546, 585, 595, 630, 663, 714, 745, 765, 819, 894, 910, 1043, 1071, 1105, 1170, 1190, 1326, 1341, 1365, 1490, 1530, 1547, 1638, 1785, 1937, 1989, 2086, 2142, 2210, 2235, 2533, 2682, 2730, 3094, 3129, 3315, 3570, 3874, 3978, 4095, 4470, 4641, 5066, 5215, 5355, 5811, 6258, 6630, 6705, 7599, 7735, 8190, 9282, 9387, 9685, 9945, 10430, 10710, 11622, 12665, 13410, 13559, 13923, 15198, 15470, 15645, 17433, 17731, 18774, 19370, 19890, 22797, 23205, 25330, 27118, 27846, 29055, 31290, 32929, 34866, 35462, 37995, 40677, 45594, 46410, 46935, 53193, 58110, 65858, 67795, 69615, 75990, 81354, 87165, 88655, 93870, 98787, 106386, 113985, 122031, 135590, 139230, 159579, 164645, 174330, 177310, 197574, 203385, 227970, 230503, 244062, 265965, 296361, 319158, 329290, 406770, 461006, 493935, 531930, 592722, 610155, 691509, 797895, 987870, 1152515, 1220310, 1383018, 1481805, 1595790, 2074527, 2305030, 2963610, 3457545, 4149054, 6915090, 10372635, 20745270]

約数ペア:

[(1, 20745270), (2, 10372635), (3, 6915090), (5, 4149054), (6, 3457545), (7, 2963610), (9, 2305030), (10, 2074527), (13, 1595790), (14, 1481805), (15, 1383018), (17, 1220310), (18, 1152515), (21, 987870), (26, 797895), (30, 691509), (34, 610155), (35, 592722), (39, 531930), (42, 493935), (45, 461006), (51, 406770), (63, 329290), (65, 319158), (70, 296361), (78, 265965), (85, 244062), (90, 230503), (91, 227970), (102, 203385), (105, 197574), (117, 177310), (119, 174330), (126, 164645), (130, 159579), (149, 139230), (153, 135590), (170, 122031), (182, 113985), (195, 106386), (210, 98787), (221, 93870), (234, 88655), (238, 87165), (255, 81354), (273, 75990), (298, 69615), (306, 67795), (315, 65858), (357, 58110), (390, 53193), (442, 46935), (447, 46410), (455, 45594), (510, 40677), (546, 37995), (585, 35462), (595, 34866), (630, 32929), (663, 31290), (714, 29055), (745, 27846), (765, 27118), (819, 25330), (894, 23205), (910, 22797), (1043, 19890), (1071, 19370), (1105, 18774), (1170, 17731), (1190, 17433), (1326, 15645), (1341, 15470), (1365, 15198), (1490, 13923), (1530, 13559), (1547, 13410), (1638, 12665), (1785, 11622), (1937, 10710), (1989, 10430), (2086, 9945), (2142, 9685), (2210, 9387), (2235, 9282), (2533, 8190), (2682, 7735), (2730, 7599), (3094, 6705), (3129, 6630), (3315, 6258), (3570, 5811), (3874, 5355), (3978, 5215), (4095, 5066), (4470, 4641)]