64727775

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 147014400

約数和(自身を除く): 82286625

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 27, 35, 45, 49, 57, 63, 75, 95, 103, 105, 133, 135, 147, 171, 175, 189, 225, 245, 285, 309, 315, 399, 441, 475, 513, 515, 525, 665, 675, 721, 735, 855, 927, 931, 945, 1197, 1225, 1323, 1425, 1545, 1575, 1957, 1995, 2163, 2205, 2565, 2575, 2781, 2793, 3325, 3591, 3605, 3675, 4275, 4635, 4655, 4725, 5047, 5871, 5985, 6489, 6615, 7725, 8379, 9785, 9975, 10815, 11025, 12825, 13699, 13905, 13965, 15141, 17613, 17955, 18025, 19467, 23175, 23275, 25137, 25235, 29355, 29925, 32445, 33075, 41097, 41895, 45423, 48925, 52839, 54075, 68495, 69525, 69825, 75705, 88065, 89775, 95893, 97335, 123291, 125685, 126175, 136269, 146775, 162225, 205485, 209475, 227115, 264195, 287679, 342475, 369873, 378525, 440325, 479465, 486675, 616455, 628425, 681345, 863037, 1027425, 1135575, 1320975, 1438395, 1849365, 2397325, 2589111, 3082275, 3406725, 4315185, 7191975, 9246825, 12945555, 21575925, 64727775]

約数ペア:

[(1, 64727775), (3, 21575925), (5, 12945555), (7, 9246825), (9, 7191975), (15, 4315185), (19, 3406725), (21, 3082275), (25, 2589111), (27, 2397325), (35, 1849365), (45, 1438395), (49, 1320975), (57, 1135575), (63, 1027425), (75, 863037), (95, 681345), (103, 628425), (105, 616455), (133, 486675), (135, 479465), (147, 440325), (171, 378525), (175, 369873), (189, 342475), (225, 287679), (245, 264195), (285, 227115), (309, 209475), (315, 205485), (399, 162225), (441, 146775), (475, 136269), (513, 126175), (515, 125685), (525, 123291), (665, 97335), (675, 95893), (721, 89775), (735, 88065), (855, 75705), (927, 69825), (931, 69525), (945, 68495), (1197, 54075), (1225, 52839), (1323, 48925), (1425, 45423), (1545, 41895), (1575, 41097), (1957, 33075), (1995, 32445), (2163, 29925), (2205, 29355), (2565, 25235), (2575, 25137), (2781, 23275), (2793, 23175), (3325, 19467), (3591, 18025), (3605, 17955), (3675, 17613), (4275, 15141), (4635, 13965), (4655, 13905), (4725, 13699), (5047, 12825), (5871, 11025), (5985, 10815), (6489, 9975), (6615, 9785), (7725, 8379)]