19767904

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 45934560

約数和(自身を除く): 26166656

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 41, 52, 61, 76, 82, 104, 122, 152, 164, 208, 244, 247, 304, 328, 416, 488, 494, 533, 608, 656, 779, 793, 976, 988, 1066, 1159, 1312, 1558, 1586, 1952, 1976, 2132, 2318, 2501, 3116, 3172, 3952, 4264, 4636, 5002, 6232, 6344, 7904, 8528, 9272, 10004, 10127, 12464, 12688, 15067, 17056, 18544, 20008, 20254, 24928, 25376, 30134, 32513, 37088, 40016, 40508, 47519, 60268, 65026, 80032, 81016, 95038, 120536, 130052, 162032, 190076, 241072, 260104, 324064, 380152, 482144, 520208, 617747, 760304, 1040416, 1235494, 1520608, 2470988, 4941976, 9883952, 19767904]

約数ペア:

[(1, 19767904), (2, 9883952), (4, 4941976), (8, 2470988), (13, 1520608), (16, 1235494), (19, 1040416), (26, 760304), (32, 617747), (38, 520208), (41, 482144), (52, 380152), (61, 324064), (76, 260104), (82, 241072), (104, 190076), (122, 162032), (152, 130052), (164, 120536), (208, 95038), (244, 81016), (247, 80032), (304, 65026), (328, 60268), (416, 47519), (488, 40508), (494, 40016), (533, 37088), (608, 32513), (656, 30134), (779, 25376), (793, 24928), (976, 20254), (988, 20008), (1066, 18544), (1159, 17056), (1312, 15067), (1558, 12688), (1586, 12464), (1952, 10127), (1976, 10004), (2132, 9272), (2318, 8528), (2501, 7904), (3116, 6344), (3172, 6232), (3952, 5002), (4264, 4636)]