19949475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 42219520

約数和(自身を除く): 22270045

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 37, 39, 65, 75, 79, 91, 105, 111, 175, 185, 195, 237, 259, 273, 325, 395, 455, 481, 525, 553, 555, 777, 925, 975, 1027, 1185, 1295, 1365, 1443, 1659, 1975, 2275, 2405, 2765, 2775, 2923, 3081, 3367, 3885, 5135, 5925, 6475, 6825, 7189, 7215, 8295, 8769, 10101, 12025, 13825, 14615, 15405, 16835, 19425, 20461, 21567, 25675, 35945, 36075, 37999, 41475, 43845, 50505, 61383, 73075, 77025, 84175, 102305, 107835, 113997, 179725, 189995, 219225, 252525, 265993, 306915, 511525, 539175, 569985, 797979, 949975, 1329965, 1534575, 2849925, 3989895, 6649825, 19949475]

約数ペア:

[(1, 19949475), (3, 6649825), (5, 3989895), (7, 2849925), (13, 1534575), (15, 1329965), (21, 949975), (25, 797979), (35, 569985), (37, 539175), (39, 511525), (65, 306915), (75, 265993), (79, 252525), (91, 219225), (105, 189995), (111, 179725), (175, 113997), (185, 107835), (195, 102305), (237, 84175), (259, 77025), (273, 73075), (325, 61383), (395, 50505), (455, 43845), (481, 41475), (525, 37999), (553, 36075), (555, 35945), (777, 25675), (925, 21567), (975, 20461), (1027, 19425), (1185, 16835), (1295, 15405), (1365, 14615), (1443, 13825), (1659, 12025), (1975, 10101), (2275, 8769), (2405, 8295), (2765, 7215), (2775, 7189), (2923, 6825), (3081, 6475), (3367, 5925), (3885, 5135)]