19835175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 35569152

約数和(自身を除く): 15733977

約数列:

[1, 3, 5, 15, 17, 25, 47, 51, 75, 85, 141, 235, 255, 331, 425, 705, 799, 993, 1175, 1275, 1655, 2397, 3525, 3995, 4965, 5627, 8275, 11985, 15557, 16881, 19975, 24825, 28135, 46671, 59925, 77785, 84405, 140675, 233355, 264469, 388925, 422025, 793407, 1166775, 1322345, 3967035, 6611725, 19835175]

約数ペア:

[(1, 19835175), (3, 6611725), (5, 3967035), (15, 1322345), (17, 1166775), (25, 793407), (47, 422025), (51, 388925), (75, 264469), (85, 233355), (141, 140675), (235, 84405), (255, 77785), (331, 59925), (425, 46671), (705, 28135), (799, 24825), (993, 19975), (1175, 16881), (1275, 15557), (1655, 11985), (2397, 8275), (3525, 5627), (3995, 4965)]