221821358125

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{619}}^1$

素因数の和:1016

約数の個数: 80

約数和(自身を含む): 293832443520

約数和(自身を除く): 72011085395

約数列:

[1, 5, 23, 25, 97, 115, 125, 257, 485, 575, 619, 625, 1285, 2231, 2425, 2875, 3095, 5911, 6425, 11155, 12125, 14237, 14375, 15475, 24929, 29555, 32125, 55775, 60043, 60625, 71185, 77375, 124645, 147775, 159083, 160625, 278875, 300215, 355925, 386875, 573367, 623225, 738875, 795415, 1380989, 1394375, 1501075, 1779625, 2866835, 3116125, 3658909, 3694375, 3977075, 6904945, 7505375, 8898125, 14334175, 15431051, 15580625, 18294545, 19885375, 34524725, 37526875, 71670875, 77155255, 91472725, 99426875, 172623625, 354914173, 358354375, 385776275, 457363625, 863118125, 1774570865, 1928881375, 2286818125, 8872854325, 9644406875, 44364271625, 221821358125]

約数ペア:

[(1, 221821358125), (5, 44364271625), (23, 9644406875), (25, 8872854325), (97, 2286818125), (115, 1928881375), (125, 1774570865), (257, 863118125), (485, 457363625), (575, 385776275), (619, 358354375), (625, 354914173), (1285, 172623625), (2231, 99426875), (2425, 91472725), (2875, 77155255), (3095, 71670875), (5911, 37526875), (6425, 34524725), (11155, 19885375), (12125, 18294545), (14237, 15580625), (14375, 15431051), (15475, 14334175), (24929, 8898125), (29555, 7505375), (32125, 6904945), (55775, 3977075), (60043, 3694375), (60625, 3658909), (71185, 3116125), (77375, 2866835), (124645, 1779625), (147775, 1501075), (159083, 1394375), (160625, 1380989), (278875, 795415), (300215, 738875), (355925, 623225), (386875, 573367)]