727648425

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 1566864000

約数和(自身を除く): 839215575

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 63, 75, 87, 89, 105, 145, 175, 179, 203, 225, 261, 267, 315, 435, 445, 525, 537, 609, 623, 725, 801, 895, 1015, 1253, 1305, 1335, 1575, 1611, 1827, 1869, 2175, 2225, 2581, 2685, 3045, 3115, 3759, 4005, 4475, 5075, 5191, 5607, 6265, 6525, 6675, 7743, 8055, 9135, 9345, 11277, 12905, 13425, 15225, 15573, 15575, 15931, 18067, 18795, 20025, 23229, 25955, 28035, 31325, 36337, 38715, 40275, 45675, 46719, 46725, 47793, 54201, 56385, 64525, 77865, 79655, 90335, 93975, 109011, 111517, 116145, 129775, 140175, 143379, 162603, 181685, 193575, 233595, 238965, 271005, 281925, 327033, 334551, 389325, 398275, 451675, 461999, 545055, 557585, 580725, 716895, 813015, 908425, 1003653, 1167975, 1194825, 1355025, 1385997, 1635165, 1672755, 2309995, 2725275, 2787925, 3233993, 3584475, 4065075, 4157991, 5018265, 6929985, 8175825, 8363775, 9701979, 11549975, 16169965, 20789955, 25091325, 29105937, 34649925, 48509895, 80849825, 103949775, 145529685, 242549475, 727648425]

約数ペア:

[(1, 727648425), (3, 242549475), (5, 145529685), (7, 103949775), (9, 80849825), (15, 48509895), (21, 34649925), (25, 29105937), (29, 25091325), (35, 20789955), (45, 16169965), (63, 11549975), (75, 9701979), (87, 8363775), (89, 8175825), (105, 6929985), (145, 5018265), (175, 4157991), (179, 4065075), (203, 3584475), (225, 3233993), (261, 2787925), (267, 2725275), (315, 2309995), (435, 1672755), (445, 1635165), (525, 1385997), (537, 1355025), (609, 1194825), (623, 1167975), (725, 1003653), (801, 908425), (895, 813015), (1015, 716895), (1253, 580725), (1305, 557585), (1335, 545055), (1575, 461999), (1611, 451675), (1827, 398275), (1869, 389325), (2175, 334551), (2225, 327033), (2581, 281925), (2685, 271005), (3045, 238965), (3115, 233595), (3759, 193575), (4005, 181685), (4475, 162603), (5075, 143379), (5191, 140175), (5607, 129775), (6265, 116145), (6525, 111517), (6675, 109011), (7743, 93975), (8055, 90335), (9135, 79655), (9345, 77865), (11277, 64525), (12905, 56385), (13425, 54201), (15225, 47793), (15573, 46725), (15575, 46719), (15931, 45675), (18067, 40275), (18795, 38715), (20025, 36337), (23229, 31325), (25955, 28035)]